1987879655

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{1481}}^1$

素因数の和:1775

約数の個数: 32

約数和(自身を含む): 2560896000

約数和(自身を除く): 573016345

約数列:

[1, 5, 19, 71, 95, 199, 355, 995, 1349, 1481, 3781, 6745, 7405, 14129, 18905, 28139, 70645, 105151, 140695, 268451, 294719, 525755, 1342255, 1473595, 1997869, 5599661, 9989345, 20925049, 27998305, 104625245, 397575931, 1987879655]

約数ペア:

[(1, 1987879655), (5, 397575931), (19, 104625245), (71, 27998305), (95, 20925049), (199, 9989345), (355, 5599661), (995, 1997869), (1349, 1473595), (1481, 1342255), (3781, 525755), (6745, 294719), (7405, 268451), (14129, 140695), (18905, 105151), (28139, 70645)]