25981700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6337}}^1$

素因数の和:6392

約数の個数: 36

約数和(自身を含む): 57764532

約数和(自身を除く): 31782832

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 6337, 12674, 25348, 31685, 63370, 126740, 158425, 259817, 316850, 519634, 633700, 1039268, 1299085, 2598170, 5196340, 6495425, 12990850, 25981700]

約数ペア:

[(1, 25981700), (2, 12990850), (4, 6495425), (5, 5196340), (10, 2598170), (20, 1299085), (25, 1039268), (41, 633700), (50, 519634), (82, 316850), (100, 259817), (164, 158425), (205, 126740), (410, 63370), (820, 31685), (1025, 25348), (2050, 12674), (4100, 6337)]