25347320

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1999}}^1$

素因数の和:2327

約数の個数: 32

約数和(自身を含む): 57240000

約数和(自身を除く): 31892680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1999, 2536, 3170, 3998, 6340, 7996, 9995, 12680, 15992, 19990, 39980, 79960, 633683, 1267366, 2534732, 3168415, 5069464, 6336830, 12673660, 25347320]

約数ペア:

[(1, 25347320), (2, 12673660), (4, 6336830), (5, 5069464), (8, 3168415), (10, 2534732), (20, 1267366), (40, 633683), (317, 79960), (634, 39980), (1268, 19990), (1585, 15992), (1999, 12680), (2536, 9995), (3170, 7996), (3998, 6340)]