77315720

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{569}}^1$

素因数の和:702

約数の個数: 64

約数和(自身を含む): 180576000

約数和(自身を除く): 103260280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 395, 430, 569, 632, 790, 860, 1138, 1580, 1720, 2276, 2845, 3160, 3397, 4552, 5690, 6794, 11380, 13588, 16985, 22760, 24467, 27176, 33970, 44951, 48934, 67940, 89902, 97868, 122335, 135880, 179804, 195736, 224755, 244670, 359608, 449510, 489340, 899020, 978680, 1798040, 1932893, 3865786, 7731572, 9664465, 15463144, 19328930, 38657860, 77315720]

約数ペア:

[(1, 77315720), (2, 38657860), (4, 19328930), (5, 15463144), (8, 9664465), (10, 7731572), (20, 3865786), (40, 1932893), (43, 1798040), (79, 978680), (86, 899020), (158, 489340), (172, 449510), (215, 359608), (316, 244670), (344, 224755), (395, 195736), (430, 179804), (569, 135880), (632, 122335), (790, 97868), (860, 89902), (1138, 67940), (1580, 48934), (1720, 44951), (2276, 33970), (2845, 27176), (3160, 24467), (3397, 22760), (4552, 16985), (5690, 13588), (6794, 11380)]