878090120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{21169}}^1$

素因数の和:21258

約数の個数: 64

約数和(自身を含む): 2126314800

約数和(自身を除く): 1248224680

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 680, 1037, 1220, 2074, 2440, 4148, 5185, 8296, 10370, 20740, 21169, 41480, 42338, 84676, 105845, 169352, 211690, 359873, 423380, 719746, 846760, 1291309, 1439492, 1799365, 2582618, 2878984, 3598730, 5165236, 6456545, 7197460, 10330472, 12913090, 14394920, 21952253, 25826180, 43904506, 51652360, 87809012, 109761265, 175618024, 219522530, 439045060, 878090120]

約数ペア:

[(1, 878090120), (2, 439045060), (4, 219522530), (5, 175618024), (8, 109761265), (10, 87809012), (17, 51652360), (20, 43904506), (34, 25826180), (40, 21952253), (61, 14394920), (68, 12913090), (85, 10330472), (122, 7197460), (136, 6456545), (170, 5165236), (244, 3598730), (305, 2878984), (340, 2582618), (488, 1799365), (610, 1439492), (680, 1291309), (1037, 846760), (1220, 719746), (2074, 423380), (2440, 359873), (4148, 211690), (5185, 169352), (8296, 105845), (10370, 84676), (20740, 42338), (21169, 41480)]