128761386

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{19889}}^1$

素因数の和:19990

約数の個数: 32

約数和(自身を含む): 280687680

約数和(自身を除く): 151926294

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 83, 166, 249, 498, 1079, 2158, 3237, 6474, 19889, 39778, 59667, 119334, 258557, 517114, 775671, 1551342, 1650787, 3301574, 4952361, 9904722, 21460231, 42920462, 64380693, 128761386]

約数ペア:

[(1, 128761386), (2, 64380693), (3, 42920462), (6, 21460231), (13, 9904722), (26, 4952361), (39, 3301574), (78, 1650787), (83, 1551342), (166, 775671), (249, 517114), (498, 258557), (1079, 119334), (2158, 59667), (3237, 39778), (6474, 19889)]