205128860

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{330853}}^1$

素因数の和:330893

約数の個数: 24

約数和(自身を含む): 444667776

約数和(自身を除く): 239538916

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 330853, 661706, 1323412, 1654265, 3308530, 6617060, 10256443, 20512886, 41025772, 51282215, 102564430, 205128860]

約数ペア:

[(1, 205128860), (2, 102564430), (4, 51282215), (5, 41025772), (10, 20512886), (20, 10256443), (31, 6617060), (62, 3308530), (124, 1654265), (155, 1323412), (310, 661706), (620, 330853)]