90691460

素因数分解:

$2^2\times 5^1\times {\mathrm{389}}^1\times {\mathrm{11657}}^1$

素因数の和:12055

約数の個数: 24

約数和(自身を含む): 190958040

約数和(自身を除く): 100266580

約数列:

[1, 2, 4, 5, 10, 20, 389, 778, 1556, 1945, 3890, 7780, 11657, 23314, 46628, 58285, 116570, 233140, 4534573, 9069146, 18138292, 22672865, 45345730, 90691460]

約数ペア:

[(1, 90691460), (2, 45345730), (4, 22672865), (5, 18138292), (10, 9069146), (20, 4534573), (389, 233140), (778, 116570), (1556, 58285), (1945, 46628), (3890, 23314), (7780, 11657)]