85724840

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20807}}^1$

素因数の和:20921

約数の個数: 32

約数和(自身を含む): 194762880

約数和(自身を除く): 109038040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 20807, 41614, 83228, 104035, 166456, 208070, 416140, 832280, 2143121, 4286242, 8572484, 10715605, 17144968, 21431210, 42862420, 85724840]

約数ペア:

[(1, 85724840), (2, 42862420), (4, 21431210), (5, 17144968), (8, 10715605), (10, 8572484), (20, 4286242), (40, 2143121), (103, 832280), (206, 416140), (412, 208070), (515, 166456), (824, 104035), (1030, 83228), (2060, 41614), (4120, 20807)]