1325080

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{211}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 3014640

約数和(自身を除く): 1689560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 211, 314, 422, 628, 785, 844, 1055, 1256, 1570, 1688, 2110, 3140, 4220, 6280, 8440, 33127, 66254, 132508, 165635, 265016, 331270, 662540, 1325080]

約数ペア:

[(1, 1325080), (2, 662540), (4, 331270), (5, 265016), (8, 165635), (10, 132508), (20, 66254), (40, 33127), (157, 8440), (211, 6280), (314, 4220), (422, 3140), (628, 2110), (785, 1688), (844, 1570), (1055, 1256)]