421653025

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1709}}^1$

素因数の和:1929

約数の個数: 24

約数和(自身を含む): 534340800

約数和(自身を除く): 112687775

約数列:

[1, 5, 25, 71, 139, 355, 695, 1709, 1775, 3475, 8545, 9869, 42725, 49345, 121339, 237551, 246725, 606695, 1187755, 3033475, 5938775, 16866121, 84330605, 421653025]

約数ペア:

[(1, 421653025), (5, 84330605), (25, 16866121), (71, 5938775), (139, 3033475), (355, 1187755), (695, 606695), (1709, 246725), (1775, 237551), (3475, 121339), (8545, 49345), (9869, 42725)]