640876467

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^2\times {\mathrm{797}}^1$

素因数の和:936

約数の個数: 48

約数和(自身を含む): 1085075712

約数和(自身を除く): 444199245

約数列:

[1, 3, 7, 11, 21, 33, 59, 77, 177, 231, 413, 649, 797, 1239, 1947, 2391, 3481, 4543, 5579, 8767, 10443, 13629, 16737, 24367, 26301, 38291, 47023, 61369, 73101, 114873, 141069, 184107, 268037, 329161, 517253, 804111, 987483, 1551759, 2774357, 3620771, 8323071, 10862313, 19420499, 30517927, 58261497, 91553781, 213625489, 640876467]

約数ペア:

[(1, 640876467), (3, 213625489), (7, 91553781), (11, 58261497), (21, 30517927), (33, 19420499), (59, 10862313), (77, 8323071), (177, 3620771), (231, 2774357), (413, 1551759), (649, 987483), (797, 804111), (1239, 517253), (1947, 329161), (2391, 268037), (3481, 184107), (4543, 141069), (5579, 114873), (8767, 73101), (10443, 61369), (13629, 47023), (16737, 38291), (24367, 26301)]