12860815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{397}}^1$

素因数の和:463

約数の個数: 32

約数和(自身を含む): 18339840

約数和(自身を除く): 5479025

約数列:

[1, 5, 11, 19, 31, 55, 95, 155, 209, 341, 397, 589, 1045, 1705, 1985, 2945, 4367, 6479, 7543, 12307, 21835, 32395, 37715, 61535, 82973, 135377, 233833, 414865, 676885, 1169165, 2572163, 12860815]

約数ペア:

[(1, 12860815), (5, 2572163), (11, 1169165), (19, 676885), (31, 414865), (55, 233833), (95, 135377), (155, 82973), (209, 61535), (341, 37715), (397, 32395), (589, 21835), (1045, 12307), (1705, 7543), (1985, 6479), (2945, 4367)]