66979720

素因数分解:

$2^3\times 5^1\times {\mathrm{1033}}^1\times {\mathrm{1621}}^1$

素因数の和:2665

約数の個数: 32

約数和(自身を含む): 150943320

約数和(自身を除く): 83963600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1033, 1621, 2066, 3242, 4132, 5165, 6484, 8105, 8264, 10330, 12968, 16210, 20660, 32420, 41320, 64840, 1674493, 3348986, 6697972, 8372465, 13395944, 16744930, 33489860, 66979720]

約数ペア:

[(1, 66979720), (2, 33489860), (4, 16744930), (5, 13395944), (8, 8372465), (10, 6697972), (20, 3348986), (40, 1674493), (1033, 64840), (1621, 41320), (2066, 32420), (3242, 20660), (4132, 16210), (5165, 12968), (6484, 10330), (8105, 8264)]