128317760

素因数分解:

$2^6\times 5^1\times {\mathrm{233}}^1\times {\mathrm{1721}}^1$

素因数の和:1971

約数の個数: 56

約数和(自身を含む): 307046376

約数和(自身を除く): 178728616

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 233, 320, 466, 932, 1165, 1721, 1864, 2330, 3442, 3728, 4660, 6884, 7456, 8605, 9320, 13768, 14912, 17210, 18640, 27536, 34420, 37280, 55072, 68840, 74560, 110144, 137680, 275360, 400993, 550720, 801986, 1603972, 2004965, 3207944, 4009930, 6415888, 8019860, 12831776, 16039720, 25663552, 32079440, 64158880, 128317760]

約数ペア:

[(1, 128317760), (2, 64158880), (4, 32079440), (5, 25663552), (8, 16039720), (10, 12831776), (16, 8019860), (20, 6415888), (32, 4009930), (40, 3207944), (64, 2004965), (80, 1603972), (160, 801986), (233, 550720), (320, 400993), (466, 275360), (932, 137680), (1165, 110144), (1721, 74560), (1864, 68840), (2330, 55072), (3442, 37280), (3728, 34420), (4660, 27536), (6884, 18640), (7456, 17210), (8605, 14912), (9320, 13768)]