12780755

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 17611776

約数和(自身を除く): 4831021

約数列:

[1, 5, 13, 23, 65, 83, 103, 115, 299, 415, 515, 1079, 1339, 1495, 1909, 2369, 5395, 6695, 8549, 9545, 11845, 24817, 30797, 42745, 111137, 124085, 153985, 196627, 555685, 983135, 2556151, 12780755]

約数ペア:

[(1, 12780755), (5, 2556151), (13, 983135), (23, 555685), (65, 196627), (83, 153985), (103, 124085), (115, 111137), (299, 42745), (415, 30797), (515, 24817), (1079, 11845), (1339, 9545), (1495, 8549), (1909, 6695), (2369, 5395)]