256564245

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{3389}}^1$

素因数の和:3514

約数の個数: 48

約数和(自身を含む): 482302080

約数和(自身を除く): 225737835

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 103, 105, 147, 245, 309, 515, 721, 735, 1545, 2163, 3389, 3605, 5047, 10167, 10815, 15141, 16945, 23723, 25235, 50835, 71169, 75705, 118615, 166061, 349067, 355845, 498183, 830305, 1047201, 1745335, 2443469, 2490915, 5236005, 7330407, 12217345, 17104283, 36652035, 51312849, 85521415, 256564245]

約数ペア:

[(1, 256564245), (3, 85521415), (5, 51312849), (7, 36652035), (15, 17104283), (21, 12217345), (35, 7330407), (49, 5236005), (103, 2490915), (105, 2443469), (147, 1745335), (245, 1047201), (309, 830305), (515, 498183), (721, 355845), (735, 349067), (1545, 166061), (2163, 118615), (3389, 75705), (3605, 71169), (5047, 50835), (10167, 25235), (10815, 23723), (15141, 16945)]