20187050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{2389}}^1$

素因数の和:2427

約数の個数: 36

約数和(自身を含む): 40675410

約数和(自身を除く): 20488360

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 169, 325, 338, 650, 845, 1690, 2389, 4225, 4778, 8450, 11945, 23890, 31057, 59725, 62114, 119450, 155285, 310570, 403741, 776425, 807482, 1552850, 2018705, 4037410, 10093525, 20187050]

約数ペア:

[(1, 20187050), (2, 10093525), (5, 4037410), (10, 2018705), (13, 1552850), (25, 807482), (26, 776425), (50, 403741), (65, 310570), (130, 155285), (169, 119450), (325, 62114), (338, 59725), (650, 31057), (845, 23890), (1690, 11945), (2389, 8450), (4225, 4778)]