27819620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{15629}}^1$

素因数の和:15727

約数の個数: 24

約数和(自身を含む): 59081400

約数和(自身を除く): 31261780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 15629, 31258, 62516, 78145, 156290, 312580, 1390981, 2781962, 5563924, 6954905, 13909810, 27819620]

約数ペア:

[(1, 27819620), (2, 13909810), (4, 6954905), (5, 5563924), (10, 2781962), (20, 1390981), (89, 312580), (178, 156290), (356, 78145), (445, 62516), (890, 31258), (1780, 15629)]