257112968

素因数分解:

$2^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{991}}^1$

素因数の和:1158

約数の個数: 64

約数和(自身を含む): 569963520

約数和(自身を除く): 312850552

約数列:

[1, 2, 4, 7, 8, 14, 28, 41, 56, 82, 113, 164, 226, 287, 328, 452, 574, 791, 904, 991, 1148, 1582, 1982, 2296, 3164, 3964, 4633, 6328, 6937, 7928, 9266, 13874, 18532, 27748, 32431, 37064, 40631, 55496, 64862, 81262, 111983, 129724, 162524, 223966, 259448, 284417, 325048, 447932, 568834, 783881, 895864, 1137668, 1567762, 2275336, 3135524, 4591303, 6271048, 9182606, 18365212, 32139121, 36730424, 64278242, 128556484, 257112968]

約数ペア:

[(1, 257112968), (2, 128556484), (4, 64278242), (7, 36730424), (8, 32139121), (14, 18365212), (28, 9182606), (41, 6271048), (56, 4591303), (82, 3135524), (113, 2275336), (164, 1567762), (226, 1137668), (287, 895864), (328, 783881), (452, 568834), (574, 447932), (791, 325048), (904, 284417), (991, 259448), (1148, 223966), (1582, 162524), (1982, 129724), (2296, 111983), (3164, 81262), (3964, 64862), (4633, 55496), (6328, 40631), (6937, 37064), (7928, 32431), (9266, 27748), (13874, 18532)]