20186551720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{12308873}}^1$

素因数の和:12308925

約数の個数: 32

約数和(自身を含む): 46527543720

約数和(自身を除く): 26340992000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 12308873, 24617746, 49235492, 61544365, 98470984, 123088730, 246177460, 492354920, 504663793, 1009327586, 2018655172, 2523318965, 4037310344, 5046637930, 10093275860, 20186551720]

約数ペア:

[(1, 20186551720), (2, 10093275860), (4, 5046637930), (5, 4037310344), (8, 2523318965), (10, 2018655172), (20, 1009327586), (40, 504663793), (41, 492354920), (82, 246177460), (164, 123088730), (205, 98470984), (328, 61544365), (410, 49235492), (820, 24617746), (1640, 12308873)]