2013640225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{1823}}^1$

素因数の和:1986

約数の個数: 48

約数和(自身を含む): 2784678912

約数和(自身を除く): 771038687

約数列:

[1, 5, 17, 23, 25, 85, 113, 115, 391, 425, 565, 575, 1823, 1921, 1955, 2599, 2825, 9115, 9605, 9775, 12995, 30991, 41929, 44183, 45575, 48025, 64975, 154955, 205999, 209645, 220915, 712793, 774775, 1029995, 1048225, 1104575, 3501983, 3563965, 4737977, 5149975, 17509915, 17819825, 23689885, 80545609, 87549575, 118449425, 402728045, 2013640225]

約数ペア:

[(1, 2013640225), (5, 402728045), (17, 118449425), (23, 87549575), (25, 80545609), (85, 23689885), (113, 17819825), (115, 17509915), (391, 5149975), (425, 4737977), (565, 3563965), (575, 3501983), (1823, 1104575), (1921, 1048225), (1955, 1029995), (2599, 774775), (2825, 712793), (9115, 220915), (9605, 209645), (9775, 205999), (12995, 154955), (30991, 64975), (41929, 48025), (44183, 45575)]