128975872

素因数分解:

$2^{10}\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1$

素因数の和:307

約数の個数: 88

約数和(自身を含む): 282977280

約数和(自身を除く): 154001408

約数列:

[1, 2, 4, 8, 16, 17, 31, 32, 34, 62, 64, 68, 124, 128, 136, 239, 248, 256, 272, 478, 496, 512, 527, 544, 956, 992, 1024, 1054, 1088, 1912, 1984, 2108, 2176, 3824, 3968, 4063, 4216, 4352, 7409, 7648, 7936, 8126, 8432, 8704, 14818, 15296, 15872, 16252, 16864, 17408, 29636, 30592, 31744, 32504, 33728, 59272, 61184, 65008, 67456, 118544, 122368, 125953, 130016, 134912, 237088, 244736, 251906, 260032, 269824, 474176, 503812, 520064, 539648, 948352, 1007624, 1040128, 1896704, 2015248, 2080256, 3793408, 4030496, 4160512, 7586816, 8060992, 16121984, 32243968, 64487936, 128975872]

約数ペア:

[(1, 128975872), (2, 64487936), (4, 32243968), (8, 16121984), (16, 8060992), (17, 7586816), (31, 4160512), (32, 4030496), (34, 3793408), (62, 2080256), (64, 2015248), (68, 1896704), (124, 1040128), (128, 1007624), (136, 948352), (239, 539648), (248, 520064), (256, 503812), (272, 474176), (478, 269824), (496, 260032), (512, 251906), (527, 244736), (544, 237088), (956, 134912), (992, 130016), (1024, 125953), (1054, 122368), (1088, 118544), (1912, 67456), (1984, 65008), (2108, 61184), (2176, 59272), (3824, 33728), (3968, 32504), (4063, 31744), (4216, 30592), (4352, 29636), (7409, 17408), (7648, 16864), (7936, 16252), (8126, 15872), (8432, 15296), (8704, 14818)]