20454965800

素因数分解:

$2^3\times 5^2\times {\mathrm{2221}}^1\times {\mathrm{46049}}^1$

素因数の和:48286

約数の個数: 48

約数和(自身を含む): 47580241500

約数和(自身を除く): 27125275700

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 2221, 4442, 8884, 11105, 17768, 22210, 44420, 46049, 55525, 88840, 92098, 111050, 184196, 222100, 230245, 368392, 444200, 460490, 920980, 1151225, 1841960, 2302450, 4604900, 9209800, 102274829, 204549658, 409099316, 511374145, 818198632, 1022748290, 2045496580, 2556870725, 4090993160, 5113741450, 10227482900, 20454965800]

約数ペア:

[(1, 20454965800), (2, 10227482900), (4, 5113741450), (5, 4090993160), (8, 2556870725), (10, 2045496580), (20, 1022748290), (25, 818198632), (40, 511374145), (50, 409099316), (100, 204549658), (200, 102274829), (2221, 9209800), (4442, 4604900), (8884, 2302450), (11105, 1841960), (17768, 1151225), (22210, 920980), (44420, 460490), (46049, 444200), (55525, 368392), (88840, 230245), (92098, 222100), (111050, 184196)]