128396918

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{55487}}^1$

素因数の和:55591

約数の個数: 16

約数和(自身を含む): 209744640

約数和(自身を除く): 81347722

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 55487, 110974, 721331, 1442662, 4938343, 9876686, 64198459, 128396918]

約数ペア:

[(1, 128396918), (2, 64198459), (13, 9876686), (26, 4938343), (89, 1442662), (178, 721331), (1157, 110974), (2314, 55487)]