20686443375

素因数分解:

$3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{136883}}^1$

素因数の和:136945

約数の個数: 64

約数和(自身を含む): 38266195968

約数和(自身を除く): 17579752593

約数列:

[1, 3, 5, 13, 15, 25, 31, 39, 65, 75, 93, 125, 155, 195, 325, 375, 403, 465, 775, 975, 1209, 1625, 2015, 2325, 3875, 4875, 6045, 10075, 11625, 30225, 50375, 136883, 151125, 410649, 684415, 1779479, 2053245, 3422075, 4243373, 5338437, 8897395, 10266225, 12730119, 17110375, 21216865, 26692185, 44486975, 51331125, 55163849, 63650595, 106084325, 133460925, 165491547, 222434875, 275819245, 318252975, 530421625, 667304625, 827457735, 1379096225, 1591264875, 4137288675, 6895481125, 20686443375]

約数ペア:

[(1, 20686443375), (3, 6895481125), (5, 4137288675), (13, 1591264875), (15, 1379096225), (25, 827457735), (31, 667304625), (39, 530421625), (65, 318252975), (75, 275819245), (93, 222434875), (125, 165491547), (155, 133460925), (195, 106084325), (325, 63650595), (375, 55163849), (403, 51331125), (465, 44486975), (775, 26692185), (975, 21216865), (1209, 17110375), (1625, 12730119), (2015, 10266225), (2325, 8897395), (3875, 5338437), (4875, 4243373), (6045, 3422075), (10075, 2053245), (11625, 1779479), (30225, 684415), (50375, 410649), (136883, 151125)]