401393888

素因数分解:

$2^5\times 7^2\times {\mathrm{281}}^1\times {\mathrm{911}}^1$

素因数の和:1216

約数の個数: 72

約数和(自身を含む): 923547744

約数和(自身を除く): 522153856

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 281, 392, 562, 784, 911, 1124, 1568, 1822, 1967, 2248, 3644, 3934, 4496, 6377, 7288, 7868, 8992, 12754, 13769, 14576, 15736, 25508, 27538, 29152, 31472, 44639, 51016, 55076, 62944, 89278, 102032, 110152, 178556, 204064, 220304, 255991, 357112, 440608, 511982, 714224, 1023964, 1428448, 1791937, 2047928, 3583874, 4095856, 7167748, 8191712, 12543559, 14335496, 25087118, 28670992, 50174236, 57341984, 100348472, 200696944, 401393888]

約数ペア:

[(1, 401393888), (2, 200696944), (4, 100348472), (7, 57341984), (8, 50174236), (14, 28670992), (16, 25087118), (28, 14335496), (32, 12543559), (49, 8191712), (56, 7167748), (98, 4095856), (112, 3583874), (196, 2047928), (224, 1791937), (281, 1428448), (392, 1023964), (562, 714224), (784, 511982), (911, 440608), (1124, 357112), (1568, 255991), (1822, 220304), (1967, 204064), (2248, 178556), (3644, 110152), (3934, 102032), (4496, 89278), (6377, 62944), (7288, 55076), (7868, 51016), (8992, 44639), (12754, 31472), (13769, 29152), (14576, 27538), (15736, 25508)]