20499752

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{971}}^1$

素因数の和:1026

約数の個数: 64

約数和(自身を含む): 48988800

約数和(自身を除く): 28489048

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 29, 52, 56, 58, 91, 104, 116, 182, 203, 232, 364, 377, 406, 728, 754, 812, 971, 1508, 1624, 1942, 2639, 3016, 3884, 5278, 6797, 7768, 10556, 12623, 13594, 21112, 25246, 27188, 28159, 50492, 54376, 56318, 88361, 100984, 112636, 176722, 197113, 225272, 353444, 366067, 394226, 706888, 732134, 788452, 1464268, 1576904, 2562469, 2928536, 5124938, 10249876, 20499752]

約数ペア:

[(1, 20499752), (2, 10249876), (4, 5124938), (7, 2928536), (8, 2562469), (13, 1576904), (14, 1464268), (26, 788452), (28, 732134), (29, 706888), (52, 394226), (56, 366067), (58, 353444), (91, 225272), (104, 197113), (116, 176722), (182, 112636), (203, 100984), (232, 88361), (364, 56318), (377, 54376), (406, 50492), (728, 28159), (754, 27188), (812, 25246), (971, 21112), (1508, 13594), (1624, 12623), (1942, 10556), (2639, 7768), (3016, 6797), (3884, 5278)]