209969510

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{677321}}^1$

素因数の和:677359

約数の個数: 16

約数和(自身を含む): 390137472

約数和(自身を除く): 180167962

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 677321, 1354642, 3386605, 6773210, 20996951, 41993902, 104984755, 209969510]

約数ペア:

[(1, 209969510), (2, 104984755), (5, 41993902), (10, 20996951), (31, 6773210), (62, 3386605), (155, 1354642), (310, 677321)]