20117963515

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{3347}}^1$

素因数の和:3572

約数の個数: 64

約数和(自身を含む): 28438179840

約数和(自身を除く): 8320216325

約数列:

[1, 5, 13, 19, 31, 65, 95, 155, 157, 247, 403, 589, 785, 1235, 2015, 2041, 2945, 2983, 3347, 4867, 7657, 10205, 14915, 16735, 24335, 38285, 38779, 43511, 63271, 63593, 92473, 103757, 193895, 217555, 316355, 317965, 462365, 518785, 525479, 826709, 1202149, 1348841, 1971383, 2627395, 4133545, 6010745, 6744205, 6831227, 9856915, 9984101, 16289849, 25627979, 34156135, 49920505, 81449245, 128139895, 129793313, 211768037, 309507131, 648966565, 1058840185, 1547535655, 4023592703, 20117963515]

約数ペア:

[(1, 20117963515), (5, 4023592703), (13, 1547535655), (19, 1058840185), (31, 648966565), (65, 309507131), (95, 211768037), (155, 129793313), (157, 128139895), (247, 81449245), (403, 49920505), (589, 34156135), (785, 25627979), (1235, 16289849), (2015, 9984101), (2041, 9856915), (2945, 6831227), (2983, 6744205), (3347, 6010745), (4867, 4133545), (7657, 2627395), (10205, 1971383), (14915, 1348841), (16735, 1202149), (24335, 826709), (38285, 525479), (38779, 518785), (43511, 462365), (63271, 317965), (63593, 316355), (92473, 217555), (103757, 193895)]