161205120

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:538

約数の個数: 256

約数和(自身を含む): 602208000

約数和(自身を除く): 441002880

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, 270, 285, 288, 304, 320, 342, 360, 380, 384, 432, 456, 480, 491, 513, 540, 570, 576, 608, 640, 684, 720, 760, 855, 864, 912, 960, 982, 1026, 1080, 1140, 1152, 1216, 1368, 1440, 1473, 1520, 1710, 1728, 1824, 1920, 1964, 2052, 2160, 2280, 2432, 2455, 2565, 2736, 2880, 2946, 3040, 3420, 3456, 3648, 3928, 4104, 4320, 4419, 4560, 4910, 5130, 5472, 5760, 5892, 6080, 6840, 7296, 7365, 7856, 8208, 8640, 8838, 9120, 9329, 9820, 10260, 10944, 11784, 12160, 13257, 13680, 14730, 15712, 16416, 17280, 17676, 18240, 18658, 19640, 20520, 21888, 22095, 23568, 26514, 27360, 27987, 29460, 31424, 32832, 35352, 36480, 37316, 39280, 41040, 44190, 46645, 47136, 53028, 54720, 55974, 58920, 62848, 65664, 66285, 70704, 74632, 78560, 82080, 83961, 88380, 93290, 94272, 106056, 109440, 111948, 117840, 132570, 139935, 141408, 149264, 157120, 164160, 167922, 176760, 186580, 188544, 212112, 223896, 235680, 251883, 265140, 279870, 282816, 298528, 314240, 328320, 335844, 353520, 373160, 419805, 424224, 447792, 471360, 503766, 530280, 559740, 565632, 597056, 671688, 707040, 746320, 839610, 848448, 895584, 942720, 1007532, 1060560, 1119480, 1194112, 1259415, 1343376, 1414080, 1492640, 1679220, 1696896, 1791168, 2015064, 2121120, 2238960, 2518830, 2686752, 2828160, 2985280, 3358440, 3582336, 4030128, 4242240, 4477920, 5037660, 5373504, 5970560, 6716880, 8060256, 8484480, 8955840, 10075320, 10747008, 13433760, 16120512, 17911680, 20150640, 26867520, 32241024, 40301280, 53735040, 80602560, 161205120]

約数ペア:

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