644820480

素因数分解:

$2^9\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:542

約数の個数: 320

約数和(自身を含む): 2415916800

約数和(自身を除く): 1771096320

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 27, 30, 32, 36, 38, 40, 45, 48, 54, 57, 60, 64, 72, 76, 80, 90, 95, 96, 108, 114, 120, 128, 135, 144, 152, 160, 171, 180, 190, 192, 216, 228, 240, 256, 270, 285, 288, 304, 320, 342, 360, 380, 384, 432, 456, 480, 491, 512, 513, 540, 570, 576, 608, 640, 684, 720, 760, 768, 855, 864, 912, 960, 982, 1026, 1080, 1140, 1152, 1216, 1280, 1368, 1440, 1473, 1520, 1536, 1710, 1728, 1824, 1920, 1964, 2052, 2160, 2280, 2304, 2432, 2455, 2560, 2565, 2736, 2880, 2946, 3040, 3420, 3456, 3648, 3840, 3928, 4104, 4320, 4419, 4560, 4608, 4864, 4910, 5130, 5472, 5760, 5892, 6080, 6840, 6912, 7296, 7365, 7680, 7856, 8208, 8640, 8838, 9120, 9329, 9728, 9820, 10260, 10944, 11520, 11784, 12160, 13257, 13680, 13824, 14592, 14730, 15712, 16416, 17280, 17676, 18240, 18658, 19640, 20520, 21888, 22095, 23040, 23568, 24320, 26514, 27360, 27987, 29184, 29460, 31424, 32832, 34560, 35352, 36480, 37316, 39280, 41040, 43776, 44190, 46645, 47136, 48640, 53028, 54720, 55974, 58920, 62848, 65664, 66285, 69120, 70704, 72960, 74632, 78560, 82080, 83961, 87552, 88380, 93290, 94272, 106056, 109440, 111948, 117840, 125696, 131328, 132570, 139935, 141408, 145920, 149264, 157120, 164160, 167922, 176760, 186580, 188544, 212112, 218880, 223896, 235680, 251392, 251883, 262656, 265140, 279870, 282816, 298528, 314240, 328320, 335844, 353520, 373160, 377088, 419805, 424224, 437760, 447792, 471360, 503766, 530280, 559740, 565632, 597056, 628480, 656640, 671688, 707040, 746320, 754176, 839610, 848448, 895584, 942720, 1007532, 1060560, 1119480, 1131264, 1194112, 1256960, 1259415, 1313280, 1343376, 1414080, 1492640, 1679220, 1696896, 1791168, 1885440, 2015064, 2121120, 2238960, 2262528, 2388224, 2518830, 2686752, 2828160, 2985280, 3358440, 3393792, 3582336, 3770880, 4030128, 4242240, 4477920, 4776448, 5037660, 5373504, 5656320, 5970560, 6716880, 6787584, 7164672, 8060256, 8484480, 8955840, 10075320, 10747008, 11312640, 11941120, 13433760, 14329344, 16120512, 16968960, 17911680, 20150640, 21494016, 23882240, 26867520, 32241024, 33937920, 35823360, 40301280, 42988032, 53735040, 64482048, 71646720, 80602560, 107470080, 128964096, 161205120, 214940160, 322410240, 644820480]

約数ペア:

[(1, 644820480), (2, 322410240), (3, 214940160), (4, 161205120), (5, 128964096), (6, 107470080), (8, 80602560), (9, 71646720), (10, 64482048), (12, 53735040), (15, 42988032), (16, 40301280), (18, 35823360), (19, 33937920), (20, 32241024), (24, 26867520), (27, 23882240), (30, 21494016), (32, 20150640), (36, 17911680), (38, 16968960), (40, 16120512), (45, 14329344), (48, 13433760), (54, 11941120), (57, 11312640), (60, 10747008), (64, 10075320), (72, 8955840), (76, 8484480), (80, 8060256), (90, 7164672), (95, 6787584), (96, 6716880), (108, 5970560), (114, 5656320), (120, 5373504), (128, 5037660), (135, 4776448), (144, 4477920), (152, 4242240), (160, 4030128), (171, 3770880), (180, 3582336), (190, 3393792), (192, 3358440), (216, 2985280), (228, 2828160), (240, 2686752), (256, 2518830), (270, 2388224), (285, 2262528), (288, 2238960), (304, 2121120), (320, 2015064), (342, 1885440), (360, 1791168), (380, 1696896), (384, 1679220), (432, 1492640), (456, 1414080), (480, 1343376), (491, 1313280), (512, 1259415), (513, 1256960), (540, 1194112), (570, 1131264), (576, 1119480), (608, 1060560), (640, 1007532), (684, 942720), (720, 895584), (760, 848448), (768, 839610), (855, 754176), (864, 746320), (912, 707040), (960, 671688), (982, 656640), (1026, 628480), (1080, 597056), (1140, 565632), (1152, 559740), (1216, 530280), (1280, 503766), (1368, 471360), (1440, 447792), (1473, 437760), (1520, 424224), (1536, 419805), (1710, 377088), (1728, 373160), (1824, 353520), (1920, 335844), (1964, 328320), (2052, 314240), (2160, 298528), (2280, 282816), (2304, 279870), (2432, 265140), (2455, 262656), (2560, 251883), (2565, 251392), (2736, 235680), (2880, 223896), (2946, 218880), (3040, 212112), (3420, 188544), (3456, 186580), (3648, 176760), (3840, 167922), (3928, 164160), (4104, 157120), (4320, 149264), (4419, 145920), (4560, 141408), (4608, 139935), (4864, 132570), (4910, 131328), (5130, 125696), (5472, 117840), (5760, 111948), (5892, 109440), (6080, 106056), (6840, 94272), (6912, 93290), (7296, 88380), (7365, 87552), (7680, 83961), (7856, 82080), (8208, 78560), (8640, 74632), (8838, 72960), (9120, 70704), (9329, 69120), (9728, 66285), (9820, 65664), (10260, 62848), (10944, 58920), (11520, 55974), (11784, 54720), (12160, 53028), (13257, 48640), (13680, 47136), (13824, 46645), (14592, 44190), (14730, 43776), (15712, 41040), (16416, 39280), (17280, 37316), (17676, 36480), (18240, 35352), (18658, 34560), (19640, 32832), (20520, 31424), (21888, 29460), (22095, 29184), (23040, 27987), (23568, 27360), (24320, 26514)]