64467940

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{21347}}^1$

素因数の和:21507

約数の個数: 24

約数和(自身を含む): 136285632

約数和(自身を除く): 71817692

約数列:

[1, 2, 4, 5, 10, 20, 151, 302, 604, 755, 1510, 3020, 21347, 42694, 85388, 106735, 213470, 426940, 3223397, 6446794, 12893588, 16116985, 32233970, 64467940]

約数ペア:

[(1, 64467940), (2, 32233970), (4, 16116985), (5, 12893588), (10, 6446794), (20, 3223397), (151, 426940), (302, 213470), (604, 106735), (755, 85388), (1510, 42694), (3020, 21347)]