66850040

素因数分解:

$2^3\times 5^1\times {\mathrm{1031}}^1\times {\mathrm{1621}}^1$

素因数の和:2663

約数の個数: 32

約数和(自身を含む): 150651360

約数和(自身を除く): 83801320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1031, 1621, 2062, 3242, 4124, 5155, 6484, 8105, 8248, 10310, 12968, 16210, 20620, 32420, 41240, 64840, 1671251, 3342502, 6685004, 8356255, 13370008, 16712510, 33425020, 66850040]

約数ペア:

[(1, 66850040), (2, 33425020), (4, 16712510), (5, 13370008), (8, 8356255), (10, 6685004), (20, 3342502), (40, 1671251), (1031, 64840), (1621, 41240), (2062, 32420), (3242, 20620), (4124, 16210), (5155, 12968), (6484, 10310), (8105, 8248)]