77864920

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{39727}}^1$

素因数の和:39752

約数の個数: 48

約数和(自身を含む): 203804640

約数和(自身を除く): 125939720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 39727, 79454, 158908, 198635, 278089, 317816, 397270, 556178, 794540, 1112356, 1390445, 1589080, 1946623, 2224712, 2780890, 3893246, 5561780, 7786492, 9733115, 11123560, 15572984, 19466230, 38932460, 77864920]

約数ペア:

[(1, 77864920), (2, 38932460), (4, 19466230), (5, 15572984), (7, 11123560), (8, 9733115), (10, 7786492), (14, 5561780), (20, 3893246), (28, 2780890), (35, 2224712), (40, 1946623), (49, 1589080), (56, 1390445), (70, 1112356), (98, 794540), (140, 556178), (196, 397270), (245, 317816), (280, 278089), (392, 198635), (490, 158908), (980, 79454), (1960, 39727)]