11871295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:223

約数の個数: 32

約数和(自身を含む): 16128000

約数和(自身を除く): 4256705

約数列:

[1, 5, 19, 29, 31, 95, 139, 145, 155, 551, 589, 695, 899, 2641, 2755, 2945, 4031, 4309, 4495, 13205, 17081, 20155, 21545, 76589, 81871, 85405, 124961, 382945, 409355, 624805, 2374259, 11871295]

約数ペア:

[(1, 11871295), (5, 2374259), (19, 624805), (29, 409355), (31, 382945), (95, 124961), (139, 85405), (145, 81871), (155, 76589), (551, 21545), (589, 20155), (695, 17081), (899, 13205), (2641, 4495), (2755, 4309), (2945, 4031)]