9890390

素因数分解:

$2^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{4357}}^1$

素因数の和:4591

約数の個数: 16

約数和(自身を含む): 17885232

約数和(自身を除く): 7994842

約数列:

[1, 2, 5, 10, 227, 454, 1135, 2270, 4357, 8714, 21785, 43570, 989039, 1978078, 4945195, 9890390]

約数ペア:

[(1, 9890390), (2, 4945195), (5, 1978078), (10, 989039), (227, 43570), (454, 21785), (1135, 8714), (2270, 4357)]