67563280

素因数分解:

$2^4\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1621}}^1$

素因数の和:2155

約数の個数: 40

約数和(自身を含む): 157483224

約数和(自身を除く): 89919944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 521, 1042, 1621, 2084, 2605, 3242, 4168, 5210, 6484, 8105, 8336, 10420, 12968, 16210, 20840, 25936, 32420, 41680, 64840, 129680, 844541, 1689082, 3378164, 4222705, 6756328, 8445410, 13512656, 16890820, 33781640, 67563280]

約数ペア:

[(1, 67563280), (2, 33781640), (4, 16890820), (5, 13512656), (8, 8445410), (10, 6756328), (16, 4222705), (20, 3378164), (40, 1689082), (80, 844541), (521, 129680), (1042, 64840), (1621, 41680), (2084, 32420), (2605, 25936), (3242, 20840), (4168, 16210), (5210, 12968), (6484, 10420), (8105, 8336)]