220121512

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{15227}}^1$

素因数の和:15385

約数の個数: 32

約数和(自身を含む): 447703200

約数和(自身を除く): 227581688

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 139, 278, 556, 1112, 1807, 3614, 7228, 14456, 15227, 30454, 60908, 121816, 197951, 395902, 791804, 1583608, 2116553, 4233106, 8466212, 16932424, 27515189, 55030378, 110060756, 220121512]

約数ペア:

[(1, 220121512), (2, 110060756), (4, 55030378), (8, 27515189), (13, 16932424), (26, 8466212), (52, 4233106), (104, 2116553), (139, 1583608), (278, 791804), (556, 395902), (1112, 197951), (1807, 121816), (3614, 60908), (7228, 30454), (14456, 15227)]