28890316

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:734

約数の個数: 48

約数和(自身を含む): 62782720

約数和(自身を除く): 33892404

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 139, 182, 278, 364, 556, 571, 973, 1142, 1807, 1946, 2284, 3614, 3892, 3997, 7228, 7423, 7994, 12649, 14846, 15988, 25298, 29692, 50596, 51961, 79369, 103922, 158738, 207844, 317476, 555583, 1031797, 1111166, 2063594, 2222332, 4127188, 7222579, 14445158, 28890316]

約数ペア:

[(1, 28890316), (2, 14445158), (4, 7222579), (7, 4127188), (13, 2222332), (14, 2063594), (26, 1111166), (28, 1031797), (52, 555583), (91, 317476), (139, 207844), (182, 158738), (278, 103922), (364, 79369), (556, 51961), (571, 50596), (973, 29692), (1142, 25298), (1807, 15988), (1946, 14846), (2284, 12649), (3614, 7994), (3892, 7423), (3997, 7228)]