81680780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{69221}}^1$

素因数の和:69289

約数の個数: 24

約数和(自身を含む): 174439440

約数和(自身を除く): 92758660

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 69221, 138442, 276884, 346105, 692210, 1384420, 4084039, 8168078, 16336156, 20420195, 40840390, 81680780]

約数ペア:

[(1, 81680780), (2, 40840390), (4, 20420195), (5, 16336156), (10, 8168078), (20, 4084039), (59, 1384420), (118, 692210), (236, 346105), (295, 276884), (590, 138442), (1180, 69221)]