281492964

素因数分解:

$2^2\times 3^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:226

約数の個数: 144

約数和(自身を含む): 767999232

約数和(自身を除く): 486506268

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 43, 47, 53, 73, 86, 94, 106, 129, 141, 146, 159, 172, 188, 212, 219, 258, 282, 292, 318, 387, 423, 438, 477, 516, 564, 636, 657, 774, 846, 876, 954, 1314, 1548, 1692, 1908, 2021, 2279, 2491, 2628, 3139, 3431, 3869, 4042, 4558, 4982, 6063, 6278, 6837, 6862, 7473, 7738, 8084, 9116, 9417, 9964, 10293, 11607, 12126, 12556, 13674, 13724, 14946, 15476, 18189, 18834, 20511, 20586, 22419, 23214, 24252, 27348, 28251, 29892, 30879, 34821, 36378, 37668, 41022, 41172, 44838, 46428, 56502, 61758, 69642, 72756, 82044, 89676, 107113, 113004, 123516, 139284, 147533, 166367, 181843, 214226, 295066, 321339, 332734, 363686, 428452, 442599, 499101, 545529, 590132, 642678, 665468, 727372, 885198, 964017, 998202, 1091058, 1285356, 1327797, 1497303, 1636587, 1770396, 1928034, 1996404, 2182116, 2655594, 2994606, 3273174, 3856068, 5311188, 5989212, 6546348, 7819249, 15638498, 23457747, 31276996, 46915494, 70373241, 93830988, 140746482, 281492964]

約数ペア:

[(1, 281492964), (2, 140746482), (3, 93830988), (4, 70373241), (6, 46915494), (9, 31276996), (12, 23457747), (18, 15638498), (36, 7819249), (43, 6546348), (47, 5989212), (53, 5311188), (73, 3856068), (86, 3273174), (94, 2994606), (106, 2655594), (129, 2182116), (141, 1996404), (146, 1928034), (159, 1770396), (172, 1636587), (188, 1497303), (212, 1327797), (219, 1285356), (258, 1091058), (282, 998202), (292, 964017), (318, 885198), (387, 727372), (423, 665468), (438, 642678), (477, 590132), (516, 545529), (564, 499101), (636, 442599), (657, 428452), (774, 363686), (846, 332734), (876, 321339), (954, 295066), (1314, 214226), (1548, 181843), (1692, 166367), (1908, 147533), (2021, 139284), (2279, 123516), (2491, 113004), (2628, 107113), (3139, 89676), (3431, 82044), (3869, 72756), (4042, 69642), (4558, 61758), (4982, 56502), (6063, 46428), (6278, 44838), (6837, 41172), (6862, 41022), (7473, 37668), (7738, 36378), (8084, 34821), (9116, 30879), (9417, 29892), (9964, 28251), (10293, 27348), (11607, 24252), (12126, 23214), (12556, 22419), (13674, 20586), (13724, 20511), (14946, 18834), (15476, 18189)]