1640502040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{5279}}^1$

素因数の和:5764

約数の個数: 64

約数和(自身を含む): 3917548800

約数和(自身を除く): 2277046760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 457, 680, 914, 1828, 2285, 3656, 4570, 5279, 7769, 9140, 10558, 15538, 18280, 21116, 26395, 31076, 38845, 42232, 52790, 62152, 77690, 89743, 105580, 155380, 179486, 211160, 310760, 358972, 448715, 717944, 897430, 1794860, 2412503, 3589720, 4825006, 9650012, 12062515, 19300024, 24125030, 41012551, 48250060, 82025102, 96500120, 164050204, 205062755, 328100408, 410125510, 820251020, 1640502040]

約数ペア:

[(1, 1640502040), (2, 820251020), (4, 410125510), (5, 328100408), (8, 205062755), (10, 164050204), (17, 96500120), (20, 82025102), (34, 48250060), (40, 41012551), (68, 24125030), (85, 19300024), (136, 12062515), (170, 9650012), (340, 4825006), (457, 3589720), (680, 2412503), (914, 1794860), (1828, 897430), (2285, 717944), (3656, 448715), (4570, 358972), (5279, 310760), (7769, 211160), (9140, 179486), (10558, 155380), (15538, 105580), (18280, 89743), (21116, 77690), (26395, 62152), (31076, 52790), (38845, 42232)]