20554675

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{397}}^1$

素因数の和:535

約数の個数: 24

約数和(自身を含む): 27143600

約数和(自身を除く): 6588925

約数列:

[1, 5, 19, 25, 95, 109, 397, 475, 545, 1985, 2071, 2725, 7543, 9925, 10355, 37715, 43273, 51775, 188575, 216365, 822187, 1081825, 4110935, 20554675]

約数ペア:

[(1, 20554675), (5, 4110935), (19, 1081825), (25, 822187), (95, 216365), (109, 188575), (397, 51775), (475, 43273), (545, 37715), (1985, 10355), (2071, 9925), (2725, 7543)]