20169995

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{3517}}^1$

素因数の和:3590

約数の個数: 16

約数和(自身を含む): 25667328

約数和(自身を除く): 5497333

約数列:

[1, 5, 31, 37, 155, 185, 1147, 3517, 5735, 17585, 109027, 130129, 545135, 650645, 4033999, 20169995]

約数ペア:

[(1, 20169995), (5, 4033999), (31, 650645), (37, 545135), (155, 130129), (185, 109027), (1147, 17585), (3517, 5735)]