64679680

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^3\times {\mathrm{23}}^1$

素因数の和:83

約数の個数: 144

約数和(自身を含む): 175129920

約数和(自身を除く): 110450240

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 169, 184, 208, 230, 256, 260, 299, 320, 338, 368, 416, 460, 520, 598, 640, 676, 736, 832, 845, 920, 1040, 1196, 1280, 1352, 1472, 1495, 1664, 1690, 1840, 2080, 2197, 2392, 2704, 2944, 2990, 3328, 3380, 3680, 3887, 4160, 4394, 4784, 5408, 5888, 5980, 6760, 7360, 7774, 8320, 8788, 9568, 10816, 10985, 11960, 13520, 14720, 15548, 16640, 17576, 19136, 19435, 21632, 21970, 23920, 27040, 29440, 31096, 35152, 38272, 38870, 43264, 43940, 47840, 50531, 54080, 62192, 70304, 76544, 77740, 87880, 95680, 101062, 108160, 124384, 140608, 155480, 175760, 191360, 202124, 216320, 248768, 252655, 281216, 310960, 351520, 382720, 404248, 497536, 505310, 562432, 621920, 703040, 808496, 995072, 1010620, 1243840, 1406080, 1616992, 2021240, 2487680, 2812160, 3233984, 4042480, 4975360, 6467968, 8084960, 12935936, 16169920, 32339840, 64679680]

約数ペア:

[(1, 64679680), (2, 32339840), (4, 16169920), (5, 12935936), (8, 8084960), (10, 6467968), (13, 4975360), (16, 4042480), (20, 3233984), (23, 2812160), (26, 2487680), (32, 2021240), (40, 1616992), (46, 1406080), (52, 1243840), (64, 1010620), (65, 995072), (80, 808496), (92, 703040), (104, 621920), (115, 562432), (128, 505310), (130, 497536), (160, 404248), (169, 382720), (184, 351520), (208, 310960), (230, 281216), (256, 252655), (260, 248768), (299, 216320), (320, 202124), (338, 191360), (368, 175760), (416, 155480), (460, 140608), (520, 124384), (598, 108160), (640, 101062), (676, 95680), (736, 87880), (832, 77740), (845, 76544), (920, 70304), (1040, 62192), (1196, 54080), (1280, 50531), (1352, 47840), (1472, 43940), (1495, 43264), (1664, 38870), (1690, 38272), (1840, 35152), (2080, 31096), (2197, 29440), (2392, 27040), (2704, 23920), (2944, 21970), (2990, 21632), (3328, 19435), (3380, 19136), (3680, 17576), (3887, 16640), (4160, 15548), (4394, 14720), (4784, 13520), (5408, 11960), (5888, 10985), (5980, 10816), (6760, 9568), (7360, 8788), (7774, 8320)]