1990760

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{317}}^1$

素因数の和:485

約数の個数: 32

約数和(自身を含む): 4521960

約数和(自身を除く): 2531200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 317, 628, 634, 785, 1256, 1268, 1570, 1585, 2536, 3140, 3170, 6280, 6340, 12680, 49769, 99538, 199076, 248845, 398152, 497690, 995380, 1990760]

約数ペア:

[(1, 1990760), (2, 995380), (4, 497690), (5, 398152), (8, 248845), (10, 199076), (20, 99538), (40, 49769), (157, 12680), (314, 6340), (317, 6280), (628, 3170), (634, 3140), (785, 2536), (1256, 1585), (1268, 1570)]