20408965164

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{307939}}^1$

素因数の和:308219

約数の個数: 72

約数和(自身を含む): 59183604480

約数和(自身を除く): 38774639316

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 263, 526, 789, 1052, 1578, 1841, 2367, 3156, 3682, 4734, 5523, 7364, 9468, 11046, 16569, 22092, 33138, 66276, 307939, 615878, 923817, 1231756, 1847634, 2155573, 2771451, 3695268, 4311146, 5542902, 6466719, 8622292, 11085804, 12933438, 19400157, 25866876, 38800314, 77600628, 80987957, 161975914, 242963871, 323951828, 485927742, 566915699, 728891613, 971855484, 1133831398, 1457783226, 1700747097, 2267662796, 2915566452, 3401494194, 5102241291, 6802988388, 10204482582, 20408965164]

約数ペア:

[(1, 20408965164), (2, 10204482582), (3, 6802988388), (4, 5102241291), (6, 3401494194), (7, 2915566452), (9, 2267662796), (12, 1700747097), (14, 1457783226), (18, 1133831398), (21, 971855484), (28, 728891613), (36, 566915699), (42, 485927742), (63, 323951828), (84, 242963871), (126, 161975914), (252, 80987957), (263, 77600628), (526, 38800314), (789, 25866876), (1052, 19400157), (1578, 12933438), (1841, 11085804), (2367, 8622292), (3156, 6466719), (3682, 5542902), (4734, 4311146), (5523, 3695268), (7364, 2771451), (9468, 2155573), (11046, 1847634), (16569, 1231756), (22092, 923817), (33138, 615878), (66276, 307939)]