20289460

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{19141}}^1$

素因数の和:19203

約数の個数: 24

約数和(自身を含む): 43414056

約数和(自身を除く): 23124596

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 530, 1060, 19141, 38282, 76564, 95705, 191410, 382820, 1014473, 2028946, 4057892, 5072365, 10144730, 20289460]

約数ペア:

[(1, 20289460), (2, 10144730), (4, 5072365), (5, 4057892), (10, 2028946), (20, 1014473), (53, 382820), (106, 191410), (212, 95705), (265, 76564), (530, 38282), (1060, 19141)]