19855004

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 39325440

約数和(自身を除く): 19470436

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 109, 113, 124, 218, 226, 403, 436, 452, 806, 1417, 1469, 1612, 2834, 2938, 3379, 3503, 5668, 5876, 6758, 7006, 12317, 13516, 14012, 24634, 43927, 45539, 49268, 87854, 91078, 160121, 175708, 182156, 320242, 381827, 640484, 763654, 1527308, 4963751, 9927502, 19855004]

約数ペア:

[(1, 19855004), (2, 9927502), (4, 4963751), (13, 1527308), (26, 763654), (31, 640484), (52, 381827), (62, 320242), (109, 182156), (113, 175708), (124, 160121), (218, 91078), (226, 87854), (403, 49268), (436, 45539), (452, 43927), (806, 24634), (1417, 14012), (1469, 13516), (1612, 12317), (2834, 7006), (2938, 6758), (3379, 5876), (3503, 5668)]