210919640

素因数分解:

$2^3\times 5^1\times {\mathrm{5272991}}^1$

素因数の和:5273002

約数の個数: 16

約数和(自身を含む): 474569280

約数和(自身を除く): 263649640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 5272991, 10545982, 21091964, 26364955, 42183928, 52729910, 105459820, 210919640]

約数ペア:

[(1, 210919640), (2, 105459820), (4, 52729910), (5, 42183928), (8, 26364955), (10, 21091964), (20, 10545982), (40, 5272991)]