128980046

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{401}}^1$

素因数の和:644

約数の個数: 32

約数和(自身を含む): 212738400

約数和(自身を除く): 83758354

約数列:

[1, 2, 13, 26, 89, 139, 178, 278, 401, 802, 1157, 1807, 2314, 3614, 5213, 10426, 12371, 24742, 35689, 55739, 71378, 111478, 160823, 321646, 463957, 724607, 927914, 1449214, 4960771, 9921542, 64490023, 128980046]

約数ペア:

[(1, 128980046), (2, 64490023), (13, 9921542), (26, 4960771), (89, 1449214), (139, 927914), (178, 724607), (278, 463957), (401, 321646), (802, 160823), (1157, 111478), (1807, 71378), (2314, 55739), (3614, 35689), (5213, 24742), (10426, 12371)]