128857882

素因数分解:

$2^1\times {\mathrm{149}}^1\times {\mathrm{181}}^1\times {\mathrm{2389}}^1$

素因数の和:2721

約数の個数: 16

約数和(自身を含む): 195741000

約数和(自身を除く): 66883118

約数列:

[1, 2, 149, 181, 298, 362, 2389, 4778, 26969, 53938, 355961, 432409, 711922, 864818, 64428941, 128857882]

約数ペア:

[(1, 128857882), (2, 64428941), (149, 864818), (181, 711922), (298, 432409), (362, 355961), (2389, 53938), (4778, 26969)]