261064120

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{32797}}^1$

素因数の和:33007

約数の個数: 32

約数和(自身を含む): 590364000

約数和(自身を除く): 329299880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 32797, 65594, 131188, 163985, 262376, 327970, 655940, 1311880, 6526603, 13053206, 26106412, 32633015, 52212824, 65266030, 130532060, 261064120]

約数ペア:

[(1, 261064120), (2, 130532060), (4, 65266030), (5, 52212824), (8, 32633015), (10, 26106412), (20, 13053206), (40, 6526603), (199, 1311880), (398, 655940), (796, 327970), (995, 262376), (1592, 163985), (1990, 131188), (3980, 65594), (7960, 32797)]