20215250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7351}}^1$

素因数の和:7379

約数の個数: 32

約数和(自身を含む): 41288832

約数和(自身を除く): 21073582

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7351, 14702, 36755, 73510, 80861, 161722, 183775, 367550, 404305, 808610, 918875, 1837750, 2021525, 4043050, 10107625, 20215250]

約数ペア:

[(1, 20215250), (2, 10107625), (5, 4043050), (10, 2021525), (11, 1837750), (22, 918875), (25, 808610), (50, 404305), (55, 367550), (110, 183775), (125, 161722), (250, 80861), (275, 73510), (550, 36755), (1375, 14702), (2750, 7351)]