256781808

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{739}}^1$

素因数の和:899

約数の個数: 120

約数和(自身を含む): 763443200

約数和(自身を除く): 506661392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 114, 127, 144, 152, 171, 228, 254, 304, 342, 381, 456, 508, 684, 739, 762, 912, 1016, 1143, 1368, 1478, 1524, 2032, 2217, 2286, 2413, 2736, 2956, 3048, 4434, 4572, 4826, 5912, 6096, 6651, 7239, 8868, 9144, 9652, 11824, 13302, 14041, 14478, 17736, 18288, 19304, 21717, 26604, 28082, 28956, 35472, 38608, 42123, 43434, 53208, 56164, 57912, 84246, 86868, 93853, 106416, 112328, 115824, 126369, 168492, 173736, 187706, 224656, 252738, 281559, 336984, 347472, 375412, 505476, 563118, 673968, 750824, 844677, 1010952, 1126236, 1501648, 1689354, 1783207, 2021904, 2252472, 3378708, 3566414, 4504944, 5349621, 6757416, 7132828, 10699242, 13514832, 14265656, 16048863, 21398484, 28531312, 32097726, 42796968, 64195452, 85593936, 128390904, 256781808]

約数ペア:

[(1, 256781808), (2, 128390904), (3, 85593936), (4, 64195452), (6, 42796968), (8, 32097726), (9, 28531312), (12, 21398484), (16, 16048863), (18, 14265656), (19, 13514832), (24, 10699242), (36, 7132828), (38, 6757416), (48, 5349621), (57, 4504944), (72, 3566414), (76, 3378708), (114, 2252472), (127, 2021904), (144, 1783207), (152, 1689354), (171, 1501648), (228, 1126236), (254, 1010952), (304, 844677), (342, 750824), (381, 673968), (456, 563118), (508, 505476), (684, 375412), (739, 347472), (762, 336984), (912, 281559), (1016, 252738), (1143, 224656), (1368, 187706), (1478, 173736), (1524, 168492), (2032, 126369), (2217, 115824), (2286, 112328), (2413, 106416), (2736, 93853), (2956, 86868), (3048, 84246), (4434, 57912), (4572, 56164), (4826, 53208), (5912, 43434), (6096, 42123), (6651, 38608), (7239, 35472), (8868, 28956), (9144, 28082), (9652, 26604), (11824, 21717), (13302, 19304), (14041, 18288), (14478, 17736)]