646219870

素因数分解:

$2^1\times 5^1\times {\mathrm{12497}}^1\times {\mathrm{5171}}^1$

素因数の和:17675

約数の個数: 16

約数和(自身を含む): 1163513808

約数和(自身を除く): 517293938

約数列:

[1, 2, 5, 10, 5171, 10342, 12497, 24994, 25855, 51710, 62485, 124970, 64621987, 129243974, 323109935, 646219870]

約数ペア:

[(1, 646219870), (2, 323109935), (5, 129243974), (10, 64621987), (5171, 124970), (10342, 62485), (12497, 51710), (24994, 25855)]