201405980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{234193}}^1$

素因数の和:234245

約数の個数: 24

約数和(自身を含む): 432790512

約数和(自身を除く): 231384532

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 234193, 468386, 936772, 1170965, 2341930, 4683860, 10070299, 20140598, 40281196, 50351495, 100702990, 201405980]

約数ペア:

[(1, 201405980), (2, 100702990), (4, 50351495), (5, 40281196), (10, 20140598), (20, 10070299), (43, 4683860), (86, 2341930), (172, 1170965), (215, 936772), (430, 468386), (860, 234193)]