64227280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61757}}^1$

素因数の和:61783

約数の個数: 40

約数和(自身を含む): 160817832

約数和(自身を除く): 96590552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 61757, 123514, 247028, 308785, 494056, 617570, 802841, 988112, 1235140, 1605682, 2470280, 3211364, 4014205, 4940560, 6422728, 8028410, 12845456, 16056820, 32113640, 64227280]

約数ペア:

[(1, 64227280), (2, 32113640), (4, 16056820), (5, 12845456), (8, 8028410), (10, 6422728), (13, 4940560), (16, 4014205), (20, 3211364), (26, 2470280), (40, 1605682), (52, 1235140), (65, 988112), (80, 802841), (104, 617570), (130, 494056), (208, 308785), (260, 247028), (520, 123514), (1040, 61757)]