688142

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 1344000

約数和(自身を除く): 655858

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 91, 133, 182, 199, 247, 266, 398, 494, 1393, 1729, 2587, 2786, 3458, 3781, 5174, 7562, 18109, 26467, 36218, 49153, 52934, 98306, 344071, 688142]

約数ペア:

[(1, 688142), (2, 344071), (7, 98306), (13, 52934), (14, 49153), (19, 36218), (26, 26467), (38, 18109), (91, 7562), (133, 5174), (182, 3781), (199, 3458), (247, 2786), (266, 2587), (398, 1729), (494, 1393)]