257465943

素因数分解:

$3^2\times 7^2\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{509}}^1$

素因数の和:597

約数の個数: 72

約数和(自身を含む): 459538560

約数和(自身を除く): 202072617

約数列:

[1, 3, 7, 9, 21, 31, 37, 49, 63, 93, 111, 147, 217, 259, 279, 333, 441, 509, 651, 777, 1147, 1519, 1527, 1813, 1953, 2331, 3441, 3563, 4557, 4581, 5439, 8029, 10323, 10689, 13671, 15779, 16317, 18833, 24087, 24941, 32067, 47337, 56203, 56499, 72261, 74823, 110453, 131831, 142011, 168609, 169497, 224469, 331359, 395493, 505827, 583823, 773171, 922817, 994077, 1186479, 1751469, 2319513, 2768451, 4086761, 5254407, 6958539, 8305353, 12260283, 28607327, 36780849, 85821981, 257465943]

約数ペア:

[(1, 257465943), (3, 85821981), (7, 36780849), (9, 28607327), (21, 12260283), (31, 8305353), (37, 6958539), (49, 5254407), (63, 4086761), (93, 2768451), (111, 2319513), (147, 1751469), (217, 1186479), (259, 994077), (279, 922817), (333, 773171), (441, 583823), (509, 505827), (651, 395493), (777, 331359), (1147, 224469), (1519, 169497), (1527, 168609), (1813, 142011), (1953, 131831), (2331, 110453), (3441, 74823), (3563, 72261), (4557, 56499), (4581, 56203), (5439, 47337), (8029, 32067), (10323, 24941), (10689, 24087), (13671, 18833), (15779, 16317)]