20165545

素因数分解:

$5^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{227}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 24678720

約数和(自身を除く): 4513175

約数列:

[1, 5, 109, 163, 227, 545, 815, 1135, 17767, 24743, 37001, 88835, 123715, 185005, 4033109, 20165545]

約数ペア:

[(1, 20165545), (5, 4033109), (109, 185005), (163, 123715), (227, 88835), (545, 37001), (815, 24743), (1135, 17767)]