20690872004

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^2\times {\mathrm{127}}^1\times {\mathrm{3853}}^1$

素因数の和:4057

約数の個数: 72

約数和(自身を含む): 41148140544

約数和(自身を除く): 20457268540

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 127, 254, 341, 508, 682, 961, 1364, 1397, 1922, 2794, 3844, 3853, 3937, 5588, 7706, 7874, 10571, 15412, 15748, 21142, 42284, 42383, 43307, 84766, 86614, 119443, 122047, 169532, 173228, 238886, 244094, 477772, 488188, 489331, 978662, 1313873, 1342517, 1957324, 2627746, 2685034, 3702733, 5255492, 5370068, 5382641, 7405466, 10765282, 14810932, 15169261, 21530564, 30338522, 40730063, 60677044, 81460126, 162920252, 166861871, 333723742, 470247091, 667447484, 940494182, 1880988364, 5172718001, 10345436002, 20690872004]

約数ペア:

[(1, 20690872004), (2, 10345436002), (4, 5172718001), (11, 1880988364), (22, 940494182), (31, 667447484), (44, 470247091), (62, 333723742), (124, 166861871), (127, 162920252), (254, 81460126), (341, 60677044), (508, 40730063), (682, 30338522), (961, 21530564), (1364, 15169261), (1397, 14810932), (1922, 10765282), (2794, 7405466), (3844, 5382641), (3853, 5370068), (3937, 5255492), (5588, 3702733), (7706, 2685034), (7874, 2627746), (10571, 1957324), (15412, 1342517), (15748, 1313873), (21142, 978662), (42284, 489331), (42383, 488188), (43307, 477772), (84766, 244094), (86614, 238886), (119443, 173228), (122047, 169532)]