71824780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{40351}}^1$

素因数の和:40449

約数の個数: 24

約数和(自身を含む): 152530560

約数和(自身を除く): 80705780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 40351, 80702, 161404, 201755, 403510, 807020, 3591239, 7182478, 14364956, 17956195, 35912390, 71824780]

約数ペア:

[(1, 71824780), (2, 35912390), (4, 17956195), (5, 14364956), (10, 7182478), (20, 3591239), (89, 807020), (178, 403510), (356, 201755), (445, 161404), (890, 80702), (1780, 40351)]