129368240

素因数分解:

$2^4\times 5^1\times {\mathrm{1617103}}^1$

素因数の和:1617116

約数の個数: 20

約数和(自身を含む): 300781344

約数和(自身を除く): 171413104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1617103, 3234206, 6468412, 8085515, 12936824, 16171030, 25873648, 32342060, 64684120, 129368240]

約数ペア:

[(1, 129368240), (2, 64684120), (4, 32342060), (5, 25873648), (8, 16171030), (10, 12936824), (16, 8085515), (20, 6468412), (40, 3234206), (80, 1617103)]