20164750

素因数分解:

$2^1\times 5^3\times {\mathrm{79}}^1\times {\mathrm{1021}}^1$

素因数の和:1117

約数の個数: 32

約数和(自身を含む): 38263680

約数和(自身を除く): 18098930

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 395, 790, 1021, 1975, 2042, 3950, 5105, 9875, 10210, 19750, 25525, 51050, 80659, 127625, 161318, 255250, 403295, 806590, 2016475, 4032950, 10082375, 20164750]

約数ペア:

[(1, 20164750), (2, 10082375), (5, 4032950), (10, 2016475), (25, 806590), (50, 403295), (79, 255250), (125, 161318), (158, 127625), (250, 80659), (395, 51050), (790, 25525), (1021, 19750), (1975, 10210), (2042, 9875), (3950, 5105)]