18972250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{6899}}^1$

素因数の和:6927

約数の個数: 32

約数和(自身を含む): 38750400

約数和(自身を除く): 19778150

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 6899, 13798, 34495, 68990, 75889, 151778, 172475, 344950, 379445, 758890, 862375, 1724750, 1897225, 3794450, 9486125, 18972250]

約数ペア:

[(1, 18972250), (2, 9486125), (5, 3794450), (10, 1897225), (11, 1724750), (22, 862375), (25, 758890), (50, 379445), (55, 344950), (110, 172475), (125, 151778), (250, 75889), (275, 68990), (550, 34495), (1375, 13798), (2750, 6899)]