661615360

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1801}}^1$

素因数の和:1870

約数の個数: 144

約数和(自身を含む): 1856377152

約数和(自身を除く): 1194761792

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 41, 56, 64, 70, 80, 82, 112, 128, 140, 160, 164, 205, 224, 256, 280, 287, 320, 328, 410, 448, 560, 574, 640, 656, 820, 896, 1120, 1148, 1280, 1312, 1435, 1640, 1792, 1801, 2240, 2296, 2624, 2870, 3280, 3602, 4480, 4592, 5248, 5740, 6560, 7204, 8960, 9005, 9184, 10496, 11480, 12607, 13120, 14408, 18010, 18368, 22960, 25214, 26240, 28816, 36020, 36736, 45920, 50428, 52480, 57632, 63035, 72040, 73472, 73841, 91840, 100856, 115264, 126070, 144080, 147682, 183680, 201712, 230528, 252140, 288160, 295364, 367360, 369205, 403424, 461056, 504280, 516887, 576320, 590728, 738410, 806848, 1008560, 1033774, 1152640, 1181456, 1476820, 1613696, 2017120, 2067548, 2305280, 2362912, 2584435, 2953640, 3227392, 4034240, 4135096, 4725824, 5168870, 5907280, 8068480, 8270192, 9451648, 10337740, 11814560, 16136960, 16540384, 18903296, 20675480, 23629120, 33080768, 41350960, 47258240, 66161536, 82701920, 94516480, 132323072, 165403840, 330807680, 661615360]

約数ペア:

[(1, 661615360), (2, 330807680), (4, 165403840), (5, 132323072), (7, 94516480), (8, 82701920), (10, 66161536), (14, 47258240), (16, 41350960), (20, 33080768), (28, 23629120), (32, 20675480), (35, 18903296), (40, 16540384), (41, 16136960), (56, 11814560), (64, 10337740), (70, 9451648), (80, 8270192), (82, 8068480), (112, 5907280), (128, 5168870), (140, 4725824), (160, 4135096), (164, 4034240), (205, 3227392), (224, 2953640), (256, 2584435), (280, 2362912), (287, 2305280), (320, 2067548), (328, 2017120), (410, 1613696), (448, 1476820), (560, 1181456), (574, 1152640), (640, 1033774), (656, 1008560), (820, 806848), (896, 738410), (1120, 590728), (1148, 576320), (1280, 516887), (1312, 504280), (1435, 461056), (1640, 403424), (1792, 369205), (1801, 367360), (2240, 295364), (2296, 288160), (2624, 252140), (2870, 230528), (3280, 201712), (3602, 183680), (4480, 147682), (4592, 144080), (5248, 126070), (5740, 115264), (6560, 100856), (7204, 91840), (8960, 73841), (9005, 73472), (9184, 72040), (10496, 63035), (11480, 57632), (12607, 52480), (13120, 50428), (14408, 45920), (18010, 36736), (18368, 36020), (22960, 28816), (25214, 26240)]