420096020

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:285

約数の個数: 96

約数和(自身を含む): 936502560

約数和(自身を除く): 516406540

約数列:

[1, 2, 4, 5, 10, 20, 53, 61, 73, 89, 106, 122, 146, 178, 212, 244, 265, 292, 305, 356, 365, 445, 530, 610, 730, 890, 1060, 1220, 1460, 1780, 3233, 3869, 4453, 4717, 5429, 6466, 6497, 7738, 8906, 9434, 10858, 12932, 12994, 15476, 16165, 17812, 18868, 19345, 21716, 22265, 23585, 25988, 27145, 32330, 32485, 38690, 44530, 47170, 54290, 64660, 64970, 77380, 89060, 94340, 108580, 129940, 236009, 287737, 344341, 396317, 472018, 575474, 688682, 792634, 944036, 1150948, 1180045, 1377364, 1438685, 1585268, 1721705, 1981585, 2360090, 2877370, 3443410, 3963170, 4720180, 5754740, 6886820, 7926340, 21004801, 42009602, 84019204, 105024005, 210048010, 420096020]

約数ペア:

[(1, 420096020), (2, 210048010), (4, 105024005), (5, 84019204), (10, 42009602), (20, 21004801), (53, 7926340), (61, 6886820), (73, 5754740), (89, 4720180), (106, 3963170), (122, 3443410), (146, 2877370), (178, 2360090), (212, 1981585), (244, 1721705), (265, 1585268), (292, 1438685), (305, 1377364), (356, 1180045), (365, 1150948), (445, 944036), (530, 792634), (610, 688682), (730, 575474), (890, 472018), (1060, 396317), (1220, 344341), (1460, 287737), (1780, 236009), (3233, 129940), (3869, 108580), (4453, 94340), (4717, 89060), (5429, 77380), (6466, 64970), (6497, 64660), (7738, 54290), (8906, 47170), (9434, 44530), (10858, 38690), (12932, 32485), (12994, 32330), (15476, 27145), (16165, 25988), (17812, 23585), (18868, 22265), (19345, 21716)]