20698090

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{797}}^1$

素因数の和:871

約数の個数: 48

約数和(自身を含む): 44212392

約数和(自身を除く): 23514302

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 53, 70, 98, 106, 245, 265, 371, 490, 530, 742, 797, 1594, 1855, 2597, 3710, 3985, 5194, 5579, 7970, 11158, 12985, 25970, 27895, 39053, 42241, 55790, 78106, 84482, 195265, 211205, 295687, 390530, 422410, 591374, 1478435, 2069809, 2956870, 4139618, 10349045, 20698090]

約数ペア:

[(1, 20698090), (2, 10349045), (5, 4139618), (7, 2956870), (10, 2069809), (14, 1478435), (35, 591374), (49, 422410), (53, 390530), (70, 295687), (98, 211205), (106, 195265), (245, 84482), (265, 78106), (371, 55790), (490, 42241), (530, 39053), (742, 27895), (797, 25970), (1594, 12985), (1855, 11158), (2597, 7970), (3710, 5579), (3985, 5194)]