20921204480

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{36241}}^1$

素因数の和:36314

約数の個数: 144

約数和(自身を含む): 56003457888

約数和(自身を除く): 35082253408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 41, 44, 55, 64, 80, 82, 88, 110, 128, 160, 164, 176, 205, 220, 256, 320, 328, 352, 410, 440, 451, 640, 656, 704, 820, 880, 902, 1280, 1312, 1408, 1640, 1760, 1804, 2255, 2624, 2816, 3280, 3520, 3608, 4510, 5248, 6560, 7040, 7216, 9020, 10496, 13120, 14080, 14432, 18040, 26240, 28864, 36080, 36241, 52480, 57728, 72160, 72482, 115456, 144320, 144964, 181205, 288640, 289928, 362410, 398651, 577280, 579856, 724820, 797302, 1159712, 1449640, 1485881, 1594604, 1993255, 2319424, 2899280, 2971762, 3189208, 3986510, 4638848, 5798560, 5943524, 6378416, 7429405, 7973020, 9277696, 11597120, 11887048, 12756832, 14858810, 15946040, 16344691, 23194240, 23774096, 25513664, 29717620, 31892080, 32689382, 46388480, 47548192, 51027328, 59435240, 63784160, 65378764, 81723455, 95096384, 102054656, 118870480, 127568320, 130757528, 163446910, 190192768, 237740960, 255136640, 261515056, 326893820, 380385536, 475481920, 510273280, 523030112, 653787640, 950963840, 1046060224, 1307575280, 1901927680, 2092120448, 2615150560, 4184240896, 5230301120, 10460602240, 20921204480]

約数ペア:

[(1, 20921204480), (2, 10460602240), (4, 5230301120), (5, 4184240896), (8, 2615150560), (10, 2092120448), (11, 1901927680), (16, 1307575280), (20, 1046060224), (22, 950963840), (32, 653787640), (40, 523030112), (41, 510273280), (44, 475481920), (55, 380385536), (64, 326893820), (80, 261515056), (82, 255136640), (88, 237740960), (110, 190192768), (128, 163446910), (160, 130757528), (164, 127568320), (176, 118870480), (205, 102054656), (220, 95096384), (256, 81723455), (320, 65378764), (328, 63784160), (352, 59435240), (410, 51027328), (440, 47548192), (451, 46388480), (640, 32689382), (656, 31892080), (704, 29717620), (820, 25513664), (880, 23774096), (902, 23194240), (1280, 16344691), (1312, 15946040), (1408, 14858810), (1640, 12756832), (1760, 11887048), (1804, 11597120), (2255, 9277696), (2624, 7973020), (2816, 7429405), (3280, 6378416), (3520, 5943524), (3608, 5798560), (4510, 4638848), (5248, 3986510), (6560, 3189208), (7040, 2971762), (7216, 2899280), (9020, 2319424), (10496, 1993255), (13120, 1594604), (14080, 1485881), (14432, 1449640), (18040, 1159712), (26240, 797302), (28864, 724820), (36080, 579856), (36241, 577280), (52480, 398651), (57728, 362410), (72160, 289928), (72482, 288640), (115456, 181205), (144320, 144964)]