48780920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{359}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 114048000

約数和(自身を除く): 65267080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 79, 86, 158, 172, 215, 316, 344, 359, 395, 430, 632, 718, 790, 860, 1436, 1580, 1720, 1795, 2872, 3160, 3397, 3590, 6794, 7180, 13588, 14360, 15437, 16985, 27176, 28361, 30874, 33970, 56722, 61748, 67940, 77185, 113444, 123496, 135880, 141805, 154370, 226888, 283610, 308740, 567220, 617480, 1134440, 1219523, 2439046, 4878092, 6097615, 9756184, 12195230, 24390460, 48780920]

約数ペア:

[(1, 48780920), (2, 24390460), (4, 12195230), (5, 9756184), (8, 6097615), (10, 4878092), (20, 2439046), (40, 1219523), (43, 1134440), (79, 617480), (86, 567220), (158, 308740), (172, 283610), (215, 226888), (316, 154370), (344, 141805), (359, 135880), (395, 123496), (430, 113444), (632, 77185), (718, 67940), (790, 61748), (860, 56722), (1436, 33970), (1580, 30874), (1720, 28361), (1795, 27176), (2872, 16985), (3160, 15437), (3397, 14360), (3590, 13588), (6794, 7180)]