122791280

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{19429}}^1$

素因数の和:19521

約数の個数: 40

約数和(自身を含む): 289118400

約数和(自身を除く): 166327120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 6320, 19429, 38858, 77716, 97145, 155432, 194290, 310864, 388580, 777160, 1534891, 1554320, 3069782, 6139564, 7674455, 12279128, 15348910, 24558256, 30697820, 61395640, 122791280]

約数ペア:

[(1, 122791280), (2, 61395640), (4, 30697820), (5, 24558256), (8, 15348910), (10, 12279128), (16, 7674455), (20, 6139564), (40, 3069782), (79, 1554320), (80, 1534891), (158, 777160), (316, 388580), (395, 310864), (632, 194290), (790, 155432), (1264, 97145), (1580, 77716), (3160, 38858), (6320, 19429)]