2188990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{281}}^1$

素因数の和:348

約数の個数: 32

約数和(自身を含む): 4263840

約数和(自身を除く): 2074850

約数列:

[1, 2, 5, 10, 19, 38, 41, 82, 95, 190, 205, 281, 410, 562, 779, 1405, 1558, 2810, 3895, 5339, 7790, 10678, 11521, 23042, 26695, 53390, 57605, 115210, 218899, 437798, 1094495, 2188990]

約数ペア:

[(1, 2188990), (2, 1094495), (5, 437798), (10, 218899), (19, 115210), (38, 57605), (41, 53390), (82, 26695), (95, 23042), (190, 11521), (205, 10678), (281, 7790), (410, 5339), (562, 3895), (779, 2810), (1405, 1558)]