210320720

素因数分解:

$2^4\times 5^1\times {\mathrm{2629009}}^1$

素因数の和:2629022

約数の個数: 20

約数和(自身を含む): 488995860

約数和(自身を除く): 278675140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2629009, 5258018, 10516036, 13145045, 21032072, 26290090, 42064144, 52580180, 105160360, 210320720]

約数ペア:

[(1, 210320720), (2, 105160360), (4, 52580180), (5, 42064144), (8, 26290090), (10, 21032072), (16, 13145045), (20, 10516036), (40, 5258018), (80, 2629009)]