89045990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{2081}}^1$

素因数の和:2488

約数の個数: 32

約数和(自身を含む): 175387680

約数和(自身を除く): 86341690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 389, 778, 1945, 2081, 3890, 4162, 4279, 8558, 10405, 20810, 21395, 22891, 42790, 45782, 114455, 228910, 809509, 1619018, 4047545, 8095090, 8904599, 17809198, 44522995, 89045990]

約数ペア:

[(1, 89045990), (2, 44522995), (5, 17809198), (10, 8904599), (11, 8095090), (22, 4047545), (55, 1619018), (110, 809509), (389, 228910), (778, 114455), (1945, 45782), (2081, 42790), (3890, 22891), (4162, 21395), (4279, 20810), (8558, 10405)]