201645020

素因数分解:

$2^2\times 5^1\times {\mathrm{2557}}^1\times {\mathrm{3943}}^1$

素因数の和:6509

約数の個数: 24

約数和(自身を含む): 423727584

約数和(自身を除く): 222082564

約数列:

[1, 2, 4, 5, 10, 20, 2557, 3943, 5114, 7886, 10228, 12785, 15772, 19715, 25570, 39430, 51140, 78860, 10082251, 20164502, 40329004, 50411255, 100822510, 201645020]

約数ペア:

[(1, 201645020), (2, 100822510), (4, 50411255), (5, 40329004), (10, 20164502), (20, 10082251), (2557, 78860), (3943, 51140), (5114, 39430), (7886, 25570), (10228, 19715), (12785, 15772)]