20385380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59957}}^1$

素因数の和:59983

約数の個数: 24

約数和(自身を含む): 45328248

約数和(自身を除く): 24942868

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 59957, 119914, 239828, 299785, 599570, 1019269, 1199140, 2038538, 4077076, 5096345, 10192690, 20385380]

約数ペア:

[(1, 20385380), (2, 10192690), (4, 5096345), (5, 4077076), (10, 2038538), (17, 1199140), (20, 1019269), (34, 599570), (68, 299785), (85, 239828), (170, 119914), (340, 59957)]