20778826236

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{241}}^2\times {\mathrm{4259}}^1$

素因数の和:4755

約数の個数: 72

約数和(自身を含む): 55654139520

約数和(自身を除く): 34875313284

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 241, 482, 723, 964, 1446, 1687, 2892, 3374, 4259, 5061, 6748, 8518, 10122, 12777, 17036, 20244, 25554, 29813, 51108, 58081, 59626, 89439, 116162, 119252, 174243, 178878, 232324, 348486, 357756, 406567, 696972, 813134, 1026419, 1219701, 1626268, 2052838, 2439402, 3079257, 4105676, 4878804, 6158514, 7184933, 12317028, 14369866, 21554799, 28739732, 43109598, 86219196, 247366979, 494733958, 742100937, 989467916, 1484201874, 1731568853, 2968403748, 3463137706, 5194706559, 6926275412, 10389413118, 20778826236]

約数ペア:

[(1, 20778826236), (2, 10389413118), (3, 6926275412), (4, 5194706559), (6, 3463137706), (7, 2968403748), (12, 1731568853), (14, 1484201874), (21, 989467916), (28, 742100937), (42, 494733958), (84, 247366979), (241, 86219196), (482, 43109598), (723, 28739732), (964, 21554799), (1446, 14369866), (1687, 12317028), (2892, 7184933), (3374, 6158514), (4259, 4878804), (5061, 4105676), (6748, 3079257), (8518, 2439402), (10122, 2052838), (12777, 1626268), (17036, 1219701), (20244, 1026419), (25554, 813134), (29813, 696972), (51108, 406567), (58081, 357756), (59626, 348486), (89439, 232324), (116162, 178878), (119252, 174243)]