20867675

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 27118800

約数和(自身を除く): 6251125

約数列:

[1, 5, 25, 29, 107, 145, 269, 535, 725, 1345, 2675, 3103, 6725, 7801, 15515, 28783, 39005, 77575, 143915, 195025, 719575, 834707, 4173535, 20867675]

約数ペア:

[(1, 20867675), (5, 4173535), (25, 834707), (29, 719575), (107, 195025), (145, 143915), (269, 77575), (535, 39005), (725, 28783), (1345, 15515), (2675, 7801), (3103, 6725)]