21504960

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:176

約数の個数: 224

約数和(自身を含む): 80467200

約数和(自身を除く): 58962240

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, 131, 135, 144, 152, 160, 171, 180, 190, 192, 216, 228, 240, 262, 270, 285, 288, 304, 320, 342, 360, 380, 393, 432, 456, 480, 513, 524, 540, 570, 576, 608, 655, 684, 720, 760, 786, 855, 864, 912, 960, 1026, 1048, 1080, 1140, 1179, 1216, 1310, 1368, 1440, 1520, 1572, 1710, 1728, 1824, 1965, 2052, 2096, 2160, 2280, 2358, 2489, 2565, 2620, 2736, 2880, 3040, 3144, 3420, 3537, 3648, 3930, 4104, 4192, 4320, 4560, 4716, 4978, 5130, 5240, 5472, 5895, 6080, 6288, 6840, 7074, 7467, 7860, 8208, 8384, 8640, 9120, 9432, 9956, 10260, 10480, 10944, 11790, 12445, 12576, 13680, 14148, 14934, 15720, 16416, 17685, 18240, 18864, 19912, 20520, 20960, 22401, 23580, 24890, 25152, 27360, 28296, 29868, 31440, 32832, 35370, 37335, 37728, 39824, 41040, 41920, 44802, 47160, 49780, 54720, 56592, 59736, 62880, 67203, 70740, 74670, 75456, 79648, 82080, 89604, 94320, 99560, 112005, 113184, 119472, 125760, 134406, 141480, 149340, 159296, 164160, 179208, 188640, 199120, 224010, 226368, 238944, 268812, 282960, 298680, 336015, 358416, 377280, 398240, 448020, 477888, 537624, 565920, 597360, 672030, 716832, 796480, 896040, 1075248, 1131840, 1194720, 1344060, 1433664, 1792080, 2150496, 2389440, 2688120, 3584160, 4300992, 5376240, 7168320, 10752480, 21504960]

約数ペア:

[(1, 21504960), (2, 10752480), (3, 7168320), (4, 5376240), (5, 4300992), (6, 3584160), (8, 2688120), (9, 2389440), (10, 2150496), (12, 1792080), (15, 1433664), (16, 1344060), (18, 1194720), (19, 1131840), (20, 1075248), (24, 896040), (27, 796480), (30, 716832), (32, 672030), (36, 597360), (38, 565920), (40, 537624), (45, 477888), (48, 448020), (54, 398240), (57, 377280), (60, 358416), (64, 336015), (72, 298680), (76, 282960), (80, 268812), (90, 238944), (95, 226368), (96, 224010), (108, 199120), (114, 188640), (120, 179208), (131, 164160), (135, 159296), (144, 149340), (152, 141480), (160, 134406), (171, 125760), (180, 119472), (190, 113184), (192, 112005), (216, 99560), (228, 94320), (240, 89604), (262, 82080), (270, 79648), (285, 75456), (288, 74670), (304, 70740), (320, 67203), (342, 62880), (360, 59736), (380, 56592), (393, 54720), (432, 49780), (456, 47160), (480, 44802), (513, 41920), (524, 41040), (540, 39824), (570, 37728), (576, 37335), (608, 35370), (655, 32832), (684, 31440), (720, 29868), (760, 28296), (786, 27360), (855, 25152), (864, 24890), (912, 23580), (960, 22401), (1026, 20960), (1048, 20520), (1080, 19912), (1140, 18864), (1179, 18240), (1216, 17685), (1310, 16416), (1368, 15720), (1440, 14934), (1520, 14148), (1572, 13680), (1710, 12576), (1728, 12445), (1824, 11790), (1965, 10944), (2052, 10480), (2096, 10260), (2160, 9956), (2280, 9432), (2358, 9120), (2489, 8640), (2565, 8384), (2620, 8208), (2736, 7860), (2880, 7467), (3040, 7074), (3144, 6840), (3420, 6288), (3537, 6080), (3648, 5895), (3930, 5472), (4104, 5240), (4192, 5130), (4320, 4978), (4560, 4716)]