81715660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{467}}^1\times {\mathrm{673}}^1$

素因数の和:1162

約数の個数: 48

約数和(自身を含む): 185474016

約数和(自身を除く): 103758356

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 467, 673, 934, 1346, 1868, 2335, 2692, 3365, 4670, 6071, 6730, 8749, 9340, 12142, 13460, 17498, 24284, 30355, 34996, 43745, 60710, 87490, 121420, 174980, 314291, 628582, 1257164, 1571455, 3142910, 4085783, 6285820, 8171566, 16343132, 20428915, 40857830, 81715660]

約数ペア:

[(1, 81715660), (2, 40857830), (4, 20428915), (5, 16343132), (10, 8171566), (13, 6285820), (20, 4085783), (26, 3142910), (52, 1571455), (65, 1257164), (130, 628582), (260, 314291), (467, 174980), (673, 121420), (934, 87490), (1346, 60710), (1868, 43745), (2335, 34996), (2692, 30355), (3365, 24284), (4670, 17498), (6071, 13460), (6730, 12142), (8749, 9340)]