87538220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{56843}}^1$

素因数の和:56870

約数の個数: 48

約数和(自身を含む): 229195008

約数和(自身を除く): 141656788

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 56843, 113686, 227372, 284215, 397901, 568430, 625273, 795802, 1136860, 1250546, 1591604, 1989505, 2501092, 3126365, 3979010, 4376911, 6252730, 7958020, 8753822, 12505460, 17507644, 21884555, 43769110, 87538220]

約数ペア:

[(1, 87538220), (2, 43769110), (4, 21884555), (5, 17507644), (7, 12505460), (10, 8753822), (11, 7958020), (14, 6252730), (20, 4376911), (22, 3979010), (28, 3126365), (35, 2501092), (44, 1989505), (55, 1591604), (70, 1250546), (77, 1136860), (110, 795802), (140, 625273), (154, 568430), (220, 397901), (308, 284215), (385, 227372), (770, 113686), (1540, 56843)]