668492708

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{65257}}^1$

素因数の和:65471

約数の個数: 24

約数和(自身を含む): 1266266232

約数和(自身を除く): 597773524

約数列:

[1, 2, 4, 13, 26, 52, 197, 394, 788, 2561, 5122, 10244, 65257, 130514, 261028, 848341, 1696682, 3393364, 12855629, 25711258, 51422516, 167123177, 334246354, 668492708]

約数ペア:

[(1, 668492708), (2, 334246354), (4, 167123177), (13, 51422516), (26, 25711258), (52, 12855629), (197, 3393364), (394, 1696682), (788, 848341), (2561, 261028), (5122, 130514), (10244, 65257)]