2021559940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{631}}^1\times {\mathrm{3907}}^1$

素因数の和:4588

約数の個数: 48

約数和(自身を含む): 4356825984

約数和(自身を除く): 2335266044

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 631, 820, 1262, 2524, 3155, 3907, 6310, 7814, 12620, 15628, 19535, 25871, 39070, 51742, 78140, 103484, 129355, 160187, 258710, 320374, 517420, 640748, 800935, 1601870, 2465317, 3203740, 4930634, 9861268, 12326585, 24653170, 49306340, 101077997, 202155994, 404311988, 505389985, 1010779970, 2021559940]

約数ペア:

[(1, 2021559940), (2, 1010779970), (4, 505389985), (5, 404311988), (10, 202155994), (20, 101077997), (41, 49306340), (82, 24653170), (164, 12326585), (205, 9861268), (410, 4930634), (631, 3203740), (820, 2465317), (1262, 1601870), (2524, 800935), (3155, 640748), (3907, 517420), (6310, 320374), (7814, 258710), (12620, 160187), (15628, 129355), (19535, 103484), (25871, 78140), (39070, 51742)]