80761720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^3\times {\mathrm{919}}^1$

素因数の和:969

約数の個数: 64

約数和(自身を含む): 197064000

約数和(自身を除く): 116302280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 169, 260, 338, 520, 676, 845, 919, 1352, 1690, 1838, 2197, 3380, 3676, 4394, 4595, 6760, 7352, 8788, 9190, 10985, 11947, 17576, 18380, 21970, 23894, 36760, 43940, 47788, 59735, 87880, 95576, 119470, 155311, 238940, 310622, 477880, 621244, 776555, 1242488, 1553110, 2019043, 3106220, 4038086, 6212440, 8076172, 10095215, 16152344, 20190430, 40380860, 80761720]

約数ペア:

[(1, 80761720), (2, 40380860), (4, 20190430), (5, 16152344), (8, 10095215), (10, 8076172), (13, 6212440), (20, 4038086), (26, 3106220), (40, 2019043), (52, 1553110), (65, 1242488), (104, 776555), (130, 621244), (169, 477880), (260, 310622), (338, 238940), (520, 155311), (676, 119470), (845, 95576), (919, 87880), (1352, 59735), (1690, 47788), (1838, 43940), (2197, 36760), (3380, 23894), (3676, 21970), (4394, 18380), (4595, 17576), (6760, 11947), (7352, 10985), (8788, 9190)]