28567820

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1151}}^1$

素因数の和:1250

約数の個数: 48

約数和(自身を含む): 64447488

約数和(自身を除く): 35879668

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 73, 85, 146, 170, 292, 340, 365, 730, 1151, 1241, 1460, 2302, 2482, 4604, 4964, 5755, 6205, 11510, 12410, 19567, 23020, 24820, 39134, 78268, 84023, 97835, 168046, 195670, 336092, 391340, 420115, 840230, 1428391, 1680460, 2856782, 5713564, 7141955, 14283910, 28567820]

約数ペア:

[(1, 28567820), (2, 14283910), (4, 7141955), (5, 5713564), (10, 2856782), (17, 1680460), (20, 1428391), (34, 840230), (68, 420115), (73, 391340), (85, 336092), (146, 195670), (170, 168046), (292, 97835), (340, 84023), (365, 78268), (730, 39134), (1151, 24820), (1241, 23020), (1460, 19567), (2302, 12410), (2482, 11510), (4604, 6205), (4964, 5755)]