660147280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{634757}}^1$

素因数の和:634783

約数の個数: 40

約数和(自身を含む): 1652909832

約数和(自身を除く): 992762552

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 634757, 1269514, 2539028, 3173785, 5078056, 6347570, 8251841, 10156112, 12695140, 16503682, 25390280, 33007364, 41259205, 50780560, 66014728, 82518410, 132029456, 165036820, 330073640, 660147280]

約数ペア:

[(1, 660147280), (2, 330073640), (4, 165036820), (5, 132029456), (8, 82518410), (10, 66014728), (13, 50780560), (16, 41259205), (20, 33007364), (26, 25390280), (40, 16503682), (52, 12695140), (65, 10156112), (80, 8251841), (104, 6347570), (130, 5078056), (208, 3173785), (260, 2539028), (520, 1269514), (1040, 634757)]