20117020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13063}}^1$

素因数の和:13090

約数の個数: 48

約数和(自身を含む): 52674048

約数和(自身を除く): 32557028

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, 13063, 26126, 52252, 65315, 91441, 130630, 143693, 182882, 261260, 287386, 365764, 457205, 574772, 718465, 914410, 1005851, 1436930, 1828820, 2011702, 2873860, 4023404, 5029255, 10058510, 20117020]

約数ペア:

[(1, 20117020), (2, 10058510), (4, 5029255), (5, 4023404), (7, 2873860), (10, 2011702), (11, 1828820), (14, 1436930), (20, 1005851), (22, 914410), (28, 718465), (35, 574772), (44, 457205), (55, 365764), (70, 287386), (77, 261260), (110, 182882), (140, 143693), (154, 130630), (220, 91441), (308, 65315), (385, 52252), (770, 26126), (1540, 13063)]