28195804

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1186

約数の個数: 48

約数和(自身を含む): 61641216

約数和(自身を除く): 33445412

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 71, 91, 142, 182, 284, 364, 497, 923, 994, 1091, 1846, 1988, 2182, 3692, 4364, 6461, 7637, 12922, 14183, 15274, 25844, 28366, 30548, 56732, 77461, 99281, 154922, 198562, 309844, 397124, 542227, 1006993, 1084454, 2013986, 2168908, 4027972, 7048951, 14097902, 28195804]

約数ペア:

[(1, 28195804), (2, 14097902), (4, 7048951), (7, 4027972), (13, 2168908), (14, 2013986), (26, 1084454), (28, 1006993), (52, 542227), (71, 397124), (91, 309844), (142, 198562), (182, 154922), (284, 99281), (364, 77461), (497, 56732), (923, 30548), (994, 28366), (1091, 25844), (1846, 15274), (1988, 14183), (2182, 12922), (3692, 7637), (4364, 6461)]