20215570

素因数分解:

$2^1\times 5^1\times {\mathrm{503}}^1\times {\mathrm{4019}}^1$

素因数の和:4529

約数の個数: 16

約数和(自身を含む): 36469440

約数和(自身を除く): 16253870

約数列:

[1, 2, 5, 10, 503, 1006, 2515, 4019, 5030, 8038, 20095, 40190, 2021557, 4043114, 10107785, 20215570]

約数ペア:

[(1, 20215570), (2, 10107785), (5, 4043114), (10, 2021557), (503, 40190), (1006, 20095), (2515, 8038), (4019, 5030)]