210816920

素因数分解:

$2^3\times 5^1\times {\mathrm{5270423}}^1$

素因数の和:5270434

約数の個数: 16

約数和(自身を含む): 474338160

約数和(自身を除く): 263521240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5270423, 10540846, 21081692, 26352115, 42163384, 52704230, 105408460, 210816920]

約数ペア:

[(1, 210816920), (2, 105408460), (4, 52704230), (5, 42163384), (8, 26352115), (10, 21081692), (20, 10540846), (40, 5270423)]