257198084

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1077

約数の個数: 72

約数和(自身を含む): 546333144

約数和(自身を除く): 289135060

約数列:

[1, 2, 4, 11, 13, 22, 26, 41, 44, 52, 82, 121, 143, 164, 242, 286, 451, 484, 533, 572, 902, 997, 1066, 1573, 1804, 1994, 2132, 3146, 3988, 4961, 5863, 6292, 9922, 10967, 11726, 12961, 19844, 21934, 23452, 25922, 40877, 43868, 51844, 64493, 81754, 120637, 128986, 142571, 163508, 241274, 257972, 285142, 449647, 482548, 531401, 570284, 899294, 1062802, 1568281, 1798588, 2125604, 3136562, 4946117, 5845411, 6273124, 9892234, 11690822, 19784468, 23381644, 64299521, 128599042, 257198084]

約数ペア:

[(1, 257198084), (2, 128599042), (4, 64299521), (11, 23381644), (13, 19784468), (22, 11690822), (26, 9892234), (41, 6273124), (44, 5845411), (52, 4946117), (82, 3136562), (121, 2125604), (143, 1798588), (164, 1568281), (242, 1062802), (286, 899294), (451, 570284), (484, 531401), (533, 482548), (572, 449647), (902, 285142), (997, 257972), (1066, 241274), (1573, 163508), (1804, 142571), (1994, 128986), (2132, 120637), (3146, 81754), (3988, 64493), (4961, 51844), (5863, 43868), (6292, 40877), (9922, 25922), (10967, 23452), (11726, 21934), (12961, 19844)]