1399996

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:158

約数の個数: 36

約数和(自身を含む): 2818200

約数和(自身を除く): 1418204

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 109, 169, 218, 247, 338, 436, 494, 676, 988, 1417, 2071, 2834, 3211, 4142, 5668, 6422, 8284, 12844, 18421, 26923, 36842, 53846, 73684, 107692, 349999, 699998, 1399996]

約数ペア:

[(1, 1399996), (2, 699998), (4, 349999), (13, 107692), (19, 73684), (26, 53846), (38, 36842), (52, 26923), (76, 18421), (109, 12844), (169, 8284), (218, 6422), (247, 5668), (338, 4142), (436, 3211), (494, 2834), (676, 2071), (988, 1417)]