261152020

素因数分解:

$2^2\times 5^1\times {\mathrm{599}}^1\times {\mathrm{21799}}^1$

素因数の和:22407

約数の個数: 24

約数和(自身を含む): 549360000

約数和(自身を除く): 288207980

約数列:

[1, 2, 4, 5, 10, 20, 599, 1198, 2396, 2995, 5990, 11980, 21799, 43598, 87196, 108995, 217990, 435980, 13057601, 26115202, 52230404, 65288005, 130576010, 261152020]

約数ペア:

[(1, 261152020), (2, 130576010), (4, 65288005), (5, 52230404), (10, 26115202), (20, 13057601), (599, 435980), (1198, 217990), (2396, 108995), (2995, 87196), (5990, 43598), (11980, 21799)]