620139020

素因数分解:

$2^2\times 5^1\times {\mathrm{1559}}^1\times {\mathrm{19889}}^1$

素因数の和:21457

約数の個数: 24

約数和(自身を含む): 1303192800

約数和(自身を除く): 683053780

約数列:

[1, 2, 4, 5, 10, 20, 1559, 3118, 6236, 7795, 15590, 19889, 31180, 39778, 79556, 99445, 198890, 397780, 31006951, 62013902, 124027804, 155034755, 310069510, 620139020]

約数ペア:

[(1, 620139020), (2, 310069510), (4, 155034755), (5, 124027804), (10, 62013902), (20, 31006951), (1559, 397780), (3118, 198890), (6236, 99445), (7795, 79556), (15590, 39778), (19889, 31180)]