25017640

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1973}}^1$

素因数の和:2301

約数の個数: 32

約数和(自身を含む): 56495880

約数和(自身を除く): 31478240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1973, 2536, 3170, 3946, 6340, 7892, 9865, 12680, 15784, 19730, 39460, 78920, 625441, 1250882, 2501764, 3127205, 5003528, 6254410, 12508820, 25017640]

約数ペア:

[(1, 25017640), (2, 12508820), (4, 6254410), (5, 5003528), (8, 3127205), (10, 2501764), (20, 1250882), (40, 625441), (317, 78920), (634, 39460), (1268, 19730), (1585, 15784), (1973, 12680), (2536, 9865), (3170, 7892), (3946, 6340)]