20825750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7573}}^1$

素因数の和:7601

約数の個数: 32

約数和(自身を含む): 42535584

約数和(自身を除く): 21709834

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7573, 15146, 37865, 75730, 83303, 166606, 189325, 378650, 416515, 833030, 946625, 1893250, 2082575, 4165150, 10412875, 20825750]

約数ペア:

[(1, 20825750), (2, 10412875), (5, 4165150), (10, 2082575), (11, 1893250), (22, 946625), (25, 833030), (50, 416515), (55, 378650), (110, 189325), (125, 166606), (250, 83303), (275, 75730), (550, 37865), (1375, 15146), (2750, 7573)]