87498740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{20161}}^1$

素因数の和:20208

約数の個数: 48

約数和(自身を含む): 216781824

約数和(自身を除く): 129283084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 20161, 40322, 80644, 100805, 141127, 201610, 282254, 403220, 564508, 624991, 705635, 1249982, 1411270, 2499964, 2822540, 3124955, 4374937, 6249910, 8749874, 12499820, 17499748, 21874685, 43749370, 87498740]

約数ペア:

[(1, 87498740), (2, 43749370), (4, 21874685), (5, 17499748), (7, 12499820), (10, 8749874), (14, 6249910), (20, 4374937), (28, 3124955), (31, 2822540), (35, 2499964), (62, 1411270), (70, 1249982), (124, 705635), (140, 624991), (155, 564508), (217, 403220), (310, 282254), (434, 201610), (620, 141127), (868, 100805), (1085, 80644), (2170, 40322), (4340, 20161)]