64674740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{248749}}^1$

素因数の和:248771

約数の個数: 24

約数和(自身を含む): 146265000

約数和(自身を除く): 81590260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 248749, 497498, 994996, 1243745, 2487490, 3233737, 4974980, 6467474, 12934948, 16168685, 32337370, 64674740]

約数ペア:

[(1, 64674740), (2, 32337370), (4, 16168685), (5, 12934948), (10, 6467474), (13, 4974980), (20, 3233737), (26, 2487490), (52, 1243745), (65, 994996), (130, 497498), (260, 248749)]