129011560

素因数分解:

$2^3\times 5^1\times {\mathrm{3225289}}^1$

素因数の和:3225300

約数の個数: 16

約数和(自身を含む): 290276100

約数和(自身を除く): 161264540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3225289, 6450578, 12901156, 16126445, 25802312, 32252890, 64505780, 129011560]

約数ペア:

[(1, 129011560), (2, 64505780), (4, 32252890), (5, 25802312), (8, 16126445), (10, 12901156), (20, 6450578), (40, 3225289)]