20164798750

素因数分解:

$2^1\times 5^4\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{3851}}^1$

素因数の和:4003

約数の個数: 80

約数和(自身を含む): 38989019520

約数和(自身を除く): 18824220770

約数列:

[1, 2, 5, 10, 25, 50, 59, 71, 118, 125, 142, 250, 295, 355, 590, 625, 710, 1250, 1475, 1775, 2950, 3550, 3851, 4189, 7375, 7702, 8378, 8875, 14750, 17750, 19255, 20945, 36875, 38510, 41890, 44375, 73750, 88750, 96275, 104725, 192550, 209450, 227209, 273421, 454418, 481375, 523625, 546842, 962750, 1047250, 1136045, 1367105, 2272090, 2406875, 2618125, 2734210, 4813750, 5236250, 5680225, 6835525, 11360450, 13671050, 16131839, 28401125, 32263678, 34177625, 56802250, 68355250, 80659195, 142005625, 161318390, 170888125, 284011250, 341776250, 403295975, 806591950, 2016479875, 4032959750, 10082399375, 20164798750]

約数ペア:

[(1, 20164798750), (2, 10082399375), (5, 4032959750), (10, 2016479875), (25, 806591950), (50, 403295975), (59, 341776250), (71, 284011250), (118, 170888125), (125, 161318390), (142, 142005625), (250, 80659195), (295, 68355250), (355, 56802250), (590, 34177625), (625, 32263678), (710, 28401125), (1250, 16131839), (1475, 13671050), (1775, 11360450), (2950, 6835525), (3550, 5680225), (3851, 5236250), (4189, 4813750), (7375, 2734210), (7702, 2618125), (8378, 2406875), (8875, 2272090), (14750, 1367105), (17750, 1136045), (19255, 1047250), (20945, 962750), (36875, 546842), (38510, 523625), (41890, 481375), (44375, 454418), (73750, 273421), (88750, 227209), (96275, 209450), (104725, 192550)]