686511070

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{2819}}^1$

素因数の和:2918

約数の個数: 64

約数和(自身を含む): 1461888000

約数和(自身を除く): 775376930

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 71, 98, 142, 245, 343, 355, 490, 497, 686, 710, 994, 1715, 2485, 2819, 3430, 3479, 4970, 5638, 6958, 14095, 17395, 19733, 24353, 28190, 34790, 39466, 48706, 98665, 121765, 138131, 197330, 200149, 243530, 276262, 400298, 690655, 966917, 1000745, 1381310, 1401043, 1933834, 2001490, 2802086, 4834585, 7005215, 9669170, 9807301, 14010430, 19614602, 49036505, 68651107, 98073010, 137302214, 343255535, 686511070]

約数ペア:

[(1, 686511070), (2, 343255535), (5, 137302214), (7, 98073010), (10, 68651107), (14, 49036505), (35, 19614602), (49, 14010430), (70, 9807301), (71, 9669170), (98, 7005215), (142, 4834585), (245, 2802086), (343, 2001490), (355, 1933834), (490, 1401043), (497, 1381310), (686, 1000745), (710, 966917), (994, 690655), (1715, 400298), (2485, 276262), (2819, 243530), (3430, 200149), (3479, 197330), (4970, 138131), (5638, 121765), (6958, 98665), (14095, 48706), (17395, 39466), (19733, 34790), (24353, 28190)]