31929220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 69366528

約数和(自身を除く): 37437308

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 137, 172, 215, 271, 274, 430, 542, 548, 685, 860, 1084, 1355, 1370, 2710, 2740, 5420, 5891, 11653, 11782, 23306, 23564, 29455, 37127, 46612, 58265, 58910, 74254, 116530, 117820, 148508, 185635, 233060, 371270, 742540, 1596461, 3192922, 6385844, 7982305, 15964610, 31929220]

約数ペア:

[(1, 31929220), (2, 15964610), (4, 7982305), (5, 6385844), (10, 3192922), (20, 1596461), (43, 742540), (86, 371270), (137, 233060), (172, 185635), (215, 148508), (271, 117820), (274, 116530), (430, 74254), (542, 58910), (548, 58265), (685, 46612), (860, 37127), (1084, 29455), (1355, 23564), (1370, 23306), (2710, 11782), (2740, 11653), (5420, 5891)]