77205520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{137867}}^1$

素因数の和:137887

約数の個数: 40

約数和(自身を含む): 205147584

約数和(自身を除く): 127942064

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 137867, 275734, 551468, 689335, 965069, 1102936, 1378670, 1930138, 2205872, 2757340, 3860276, 4825345, 5514680, 7720552, 9650690, 11029360, 15441104, 19301380, 38602760, 77205520]

約数ペア:

[(1, 77205520), (2, 38602760), (4, 19301380), (5, 15441104), (7, 11029360), (8, 9650690), (10, 7720552), (14, 5514680), (16, 4825345), (20, 3860276), (28, 2757340), (35, 2205872), (40, 1930138), (56, 1378670), (70, 1102936), (80, 965069), (112, 689335), (140, 551468), (280, 275734), (560, 137867)]