129900920

素因数分解:

$2^3\times 5^1\times {\mathrm{3247523}}^1$

素因数の和:3247534

約数の個数: 16

約数和(自身を含む): 292277160

約数和(自身を除く): 162376240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3247523, 6495046, 12990092, 16237615, 25980184, 32475230, 64950460, 129900920]

約数ペア:

[(1, 129900920), (2, 64950460), (4, 32475230), (5, 25980184), (8, 16237615), (10, 12990092), (20, 6495046), (40, 3247523)]