2009705980

素因数分解:

$2^2\times 5^1\times {\mathrm{1231}}^1\times {\mathrm{81629}}^1$

素因数の和:82869

約数の個数: 24

約数和(自身を含む): 4223862720

約数和(自身を除く): 2214156740

約数列:

[1, 2, 4, 5, 10, 20, 1231, 2462, 4924, 6155, 12310, 24620, 81629, 163258, 326516, 408145, 816290, 1632580, 100485299, 200970598, 401941196, 502426495, 1004852990, 2009705980]

約数ペア:

[(1, 2009705980), (2, 1004852990), (4, 502426495), (5, 401941196), (10, 200970598), (20, 100485299), (1231, 1632580), (2462, 816290), (4924, 408145), (6155, 326516), (12310, 163258), (24620, 81629)]