256217728

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{4967}}^1$

素因数の和:5025

約数の個数: 64

約数和(自身を含む): 567544320

約数和(自身を除く): 311326592

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 32, 52, 62, 64, 104, 124, 128, 208, 248, 403, 416, 496, 806, 832, 992, 1612, 1664, 1984, 3224, 3968, 4967, 6448, 9934, 12896, 19868, 25792, 39736, 51584, 64571, 79472, 129142, 153977, 158944, 258284, 307954, 317888, 516568, 615908, 635776, 1033136, 1231816, 2001701, 2066272, 2463632, 4003402, 4132544, 4927264, 8006804, 8265088, 9854528, 16013608, 19709056, 32027216, 64054432, 128108864, 256217728]

約数ペア:

[(1, 256217728), (2, 128108864), (4, 64054432), (8, 32027216), (13, 19709056), (16, 16013608), (26, 9854528), (31, 8265088), (32, 8006804), (52, 4927264), (62, 4132544), (64, 4003402), (104, 2463632), (124, 2066272), (128, 2001701), (208, 1231816), (248, 1033136), (403, 635776), (416, 615908), (496, 516568), (806, 317888), (832, 307954), (992, 258284), (1612, 158944), (1664, 153977), (1984, 129142), (3224, 79472), (3968, 64571), (4967, 51584), (6448, 39736), (9934, 25792), (12896, 19868)]