8260720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{47}}^1$

素因数の和:99

約数の個数: 80

約数和(自身を含む): 21248640

約数和(自身を除く): 12987920

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 47, 52, 65, 80, 94, 104, 130, 169, 188, 208, 235, 260, 338, 376, 470, 520, 611, 676, 752, 845, 940, 1040, 1222, 1352, 1690, 1880, 2197, 2444, 2704, 3055, 3380, 3760, 4394, 4888, 6110, 6760, 7943, 8788, 9776, 10985, 12220, 13520, 15886, 17576, 21970, 24440, 31772, 35152, 39715, 43940, 48880, 63544, 79430, 87880, 103259, 127088, 158860, 175760, 206518, 317720, 413036, 516295, 635440, 826072, 1032590, 1652144, 2065180, 4130360, 8260720]

約数ペア:

[(1, 8260720), (2, 4130360), (4, 2065180), (5, 1652144), (8, 1032590), (10, 826072), (13, 635440), (16, 516295), (20, 413036), (26, 317720), (40, 206518), (47, 175760), (52, 158860), (65, 127088), (80, 103259), (94, 87880), (104, 79430), (130, 63544), (169, 48880), (188, 43940), (208, 39715), (235, 35152), (260, 31772), (338, 24440), (376, 21970), (470, 17576), (520, 15886), (611, 13520), (676, 12220), (752, 10985), (845, 9776), (940, 8788), (1040, 7943), (1222, 6760), (1352, 6110), (1690, 4888), (1880, 4394), (2197, 3760), (2444, 3380), (2704, 3055)]