25691480

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4091}}^1$

素因数の和:4259

約数の個数: 32

約数和(自身を含む): 58188240

約数和(自身を除く): 32496760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 4091, 6280, 8182, 16364, 20455, 32728, 40910, 81820, 163640, 642287, 1284574, 2569148, 3211435, 5138296, 6422870, 12845740, 25691480]

約数ペア:

[(1, 25691480), (2, 12845740), (4, 6422870), (5, 5138296), (8, 3211435), (10, 2569148), (20, 1284574), (40, 642287), (157, 163640), (314, 81820), (628, 40910), (785, 32728), (1256, 20455), (1570, 16364), (3140, 8182), (4091, 6280)]