255319617

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:298

約数の個数: 64

約数和(自身を含む): 426069504

約数和(自身を除く): 170749887

約数列:

[1, 3, 7, 17, 21, 51, 73, 97, 101, 119, 219, 291, 303, 357, 511, 679, 707, 1241, 1533, 1649, 1717, 2037, 2121, 3723, 4947, 5151, 7081, 7373, 8687, 9797, 11543, 12019, 21243, 22119, 26061, 29391, 34629, 36057, 49567, 51611, 68579, 120377, 125341, 148701, 154833, 166549, 205737, 361131, 376023, 499647, 715181, 842639, 877387, 1165843, 2145543, 2527917, 2632161, 3497529, 5006267, 12158077, 15018801, 36474231, 85106539, 255319617]

約数ペア:

[(1, 255319617), (3, 85106539), (7, 36474231), (17, 15018801), (21, 12158077), (51, 5006267), (73, 3497529), (97, 2632161), (101, 2527917), (119, 2145543), (219, 1165843), (291, 877387), (303, 842639), (357, 715181), (511, 499647), (679, 376023), (707, 361131), (1241, 205737), (1533, 166549), (1649, 154833), (1717, 148701), (2037, 125341), (2121, 120377), (3723, 68579), (4947, 51611), (5151, 49567), (7081, 36057), (7373, 34629), (8687, 29391), (9797, 26061), (11543, 22119), (12019, 21243)]