12920138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{263}}^1$

素因数の和:323

約数の個数: 48

約数和(自身を含む): 25280640

約数和(自身を除く): 12360502

約数列:

[1, 2, 7, 11, 14, 22, 29, 58, 77, 121, 154, 203, 242, 263, 319, 406, 526, 638, 847, 1694, 1841, 2233, 2893, 3509, 3682, 4466, 5786, 7018, 7627, 15254, 20251, 24563, 31823, 40502, 49126, 53389, 63646, 83897, 106778, 167794, 222761, 445522, 587279, 922867, 1174558, 1845734, 6460069, 12920138]

約数ペア:

[(1, 12920138), (2, 6460069), (7, 1845734), (11, 1174558), (14, 922867), (22, 587279), (29, 445522), (58, 222761), (77, 167794), (121, 106778), (154, 83897), (203, 63646), (242, 53389), (263, 49126), (319, 40502), (406, 31823), (526, 24563), (638, 20251), (847, 15254), (1694, 7627), (1841, 7018), (2233, 5786), (2893, 4466), (3509, 3682)]