19888140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3041}}^1$

素因数の和:3162

約数の個数: 48

約数和(自身を含む): 56216160

約数和(自身を除く): 36328020

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3041, 3270, 6082, 6540, 9123, 12164, 15205, 18246, 30410, 36492, 45615, 60820, 91230, 182460, 331469, 662938, 994407, 1325876, 1657345, 1988814, 3314690, 3977628, 4972035, 6629380, 9944070, 19888140]

約数ペア:

[(1, 19888140), (2, 9944070), (3, 6629380), (4, 4972035), (5, 3977628), (6, 3314690), (10, 1988814), (12, 1657345), (15, 1325876), (20, 994407), (30, 662938), (60, 331469), (109, 182460), (218, 91230), (327, 60820), (436, 45615), (545, 36492), (654, 30410), (1090, 18246), (1308, 15205), (1635, 12164), (2180, 9123), (3041, 6540), (3270, 6082)]