254394728

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1\times {\mathrm{409}}^1$

素因数の和:834

約数の個数: 64

約数和(自身を含む): 566784000

約数和(自身を除く): 312389272

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 56, 58, 116, 203, 232, 383, 406, 409, 766, 812, 818, 1532, 1624, 1636, 2681, 2863, 3064, 3272, 5362, 5726, 10724, 11107, 11452, 11861, 21448, 22214, 22904, 23722, 44428, 47444, 77749, 83027, 88856, 94888, 155498, 156647, 166054, 310996, 313294, 332108, 621992, 626588, 664216, 1096529, 1253176, 2193058, 4386116, 4542763, 8772232, 9085526, 18171052, 31799341, 36342104, 63598682, 127197364, 254394728]

約数ペア:

[(1, 254394728), (2, 127197364), (4, 63598682), (7, 36342104), (8, 31799341), (14, 18171052), (28, 9085526), (29, 8772232), (56, 4542763), (58, 4386116), (116, 2193058), (203, 1253176), (232, 1096529), (383, 664216), (406, 626588), (409, 621992), (766, 332108), (812, 313294), (818, 310996), (1532, 166054), (1624, 156647), (1636, 155498), (2681, 94888), (2863, 88856), (3064, 83027), (3272, 77749), (5362, 47444), (5726, 44428), (10724, 23722), (11107, 22904), (11452, 22214), (11861, 21448)]