801340

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{389}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 1703520

約数和(自身を除く): 902180

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 389, 412, 515, 778, 1030, 1556, 1945, 2060, 3890, 7780, 40067, 80134, 160268, 200335, 400670, 801340]

約数ペア:

[(1, 801340), (2, 400670), (4, 200335), (5, 160268), (10, 80134), (20, 40067), (103, 7780), (206, 3890), (389, 2060), (412, 1945), (515, 1556), (778, 1030)]