660777740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{674263}}^1$

素因数の和:674286

約数の個数: 36

約数和(自身を含む): 1614188016

約数和(自身を除く): 953410276

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 674263, 1348526, 2697052, 3371315, 4719841, 6742630, 9439682, 13485260, 18879364, 23599205, 33038887, 47198410, 66077774, 94396820, 132155548, 165194435, 330388870, 660777740]

約数ペア:

[(1, 660777740), (2, 330388870), (4, 165194435), (5, 132155548), (7, 94396820), (10, 66077774), (14, 47198410), (20, 33038887), (28, 23599205), (35, 18879364), (49, 13485260), (70, 9439682), (98, 6742630), (140, 4719841), (196, 3371315), (245, 2697052), (490, 1348526), (980, 674263)]