158792020

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{89209}}^1$

素因数の和:89307

約数の個数: 24

約数和(自身を含む): 337213800

約数和(自身を除く): 178421780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 89209, 178418, 356836, 446045, 892090, 1784180, 7939601, 15879202, 31758404, 39698005, 79396010, 158792020]

約数ペア:

[(1, 158792020), (2, 79396010), (4, 39698005), (5, 31758404), (10, 15879202), (20, 7939601), (89, 1784180), (178, 892090), (356, 446045), (445, 356836), (890, 178418), (1780, 89209)]