28774390

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 52899840

約数和(自身を除く): 24125450

約数列:

[1, 2, 5, 10, 127, 139, 163, 254, 278, 326, 635, 695, 815, 1270, 1390, 1630, 17653, 20701, 22657, 35306, 41402, 45314, 88265, 103505, 113285, 176530, 207010, 226570, 2877439, 5754878, 14387195, 28774390]

約数ペア:

[(1, 28774390), (2, 14387195), (5, 5754878), (10, 2877439), (127, 226570), (139, 207010), (163, 176530), (254, 113285), (278, 103505), (326, 88265), (635, 45314), (695, 41402), (815, 35306), (1270, 22657), (1390, 20701), (1630, 17653)]