20181087712

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{283}}^1\times {\mathrm{31387}}^1$

素因数の和:31751

約数の個数: 48

約数和(自身を含む): 40434774912

約数和(自身を除く): 20253687200

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 283, 284, 566, 568, 1132, 1136, 2264, 2272, 4528, 9056, 20093, 31387, 40186, 62774, 80372, 125548, 160744, 251096, 321488, 502192, 642976, 1004384, 2228477, 4456954, 8882521, 8913908, 17765042, 17827816, 35530084, 35655632, 71060168, 71311264, 142120336, 284240672, 630658991, 1261317982, 2522635964, 5045271928, 10090543856, 20181087712]

約数ペア:

[(1, 20181087712), (2, 10090543856), (4, 5045271928), (8, 2522635964), (16, 1261317982), (32, 630658991), (71, 284240672), (142, 142120336), (283, 71311264), (284, 71060168), (566, 35655632), (568, 35530084), (1132, 17827816), (1136, 17765042), (2264, 8913908), (2272, 8882521), (4528, 4456954), (9056, 2228477), (20093, 1004384), (31387, 642976), (40186, 502192), (62774, 321488), (80372, 251096), (125548, 160744)]