128612428

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{148171}}^1$

素因数の和:148213

約数の個数: 24

約数和(自身を含む): 265524224

約数和(自身を除く): 136911796

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868, 148171, 296342, 592684, 1037197, 2074394, 4148788, 4593301, 9186602, 18373204, 32153107, 64306214, 128612428]

約数ペア:

[(1, 128612428), (2, 64306214), (4, 32153107), (7, 18373204), (14, 9186602), (28, 4593301), (31, 4148788), (62, 2074394), (124, 1037197), (217, 592684), (434, 296342), (868, 148171)]