639534990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{21317833}}^1$

素因数の和:21317843

約数の個数: 16

約数和(自身を含む): 1534884048

約数和(自身を除く): 895349058

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 21317833, 42635666, 63953499, 106589165, 127906998, 213178330, 319767495, 639534990]

約数ペア:

[(1, 639534990), (2, 319767495), (3, 213178330), (5, 127906998), (6, 106589165), (10, 63953499), (15, 42635666), (30, 21317833)]