20304310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{499}}^1$

素因数の和:832

約数の個数: 32

約数和(自身を含む): 39564000

約数和(自身を除く): 19259690

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 313, 499, 626, 998, 1565, 2495, 3130, 4069, 4990, 6487, 8138, 12974, 20345, 32435, 40690, 64870, 156187, 312374, 780935, 1561870, 2030431, 4060862, 10152155, 20304310]

約数ペア:

[(1, 20304310), (2, 10152155), (5, 4060862), (10, 2030431), (13, 1561870), (26, 780935), (65, 312374), (130, 156187), (313, 64870), (499, 40690), (626, 32435), (998, 20345), (1565, 12974), (2495, 8138), (3130, 6487), (4069, 4990)]