25271240

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1993}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 57068280

約数和(自身を除く): 31797040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1993, 2536, 3170, 3986, 6340, 7972, 9965, 12680, 15944, 19930, 39860, 79720, 631781, 1263562, 2527124, 3158905, 5054248, 6317810, 12635620, 25271240]

約数ペア:

[(1, 25271240), (2, 12635620), (4, 6317810), (5, 5054248), (8, 3158905), (10, 2527124), (20, 1263562), (40, 631781), (317, 79720), (634, 39860), (1268, 19930), (1585, 15944), (1993, 12680), (2536, 9965), (3170, 7972), (3986, 6340)]