131617220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{509}}^1\times {\mathrm{1847}}^1$

素因数の和:2372

約数の個数: 48

約数和(自身を含む): 316673280

約数和(自身を除く): 185056060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 509, 1018, 1847, 2036, 2545, 3563, 3694, 5090, 7126, 7388, 9235, 10180, 12929, 14252, 17815, 18470, 25858, 35630, 36940, 51716, 64645, 71260, 129290, 258580, 940123, 1880246, 3760492, 4700615, 6580861, 9401230, 13161722, 18802460, 26323444, 32904305, 65808610, 131617220]

約数ペア:

[(1, 131617220), (2, 65808610), (4, 32904305), (5, 26323444), (7, 18802460), (10, 13161722), (14, 9401230), (20, 6580861), (28, 4700615), (35, 3760492), (70, 1880246), (140, 940123), (509, 258580), (1018, 129290), (1847, 71260), (2036, 64645), (2545, 51716), (3563, 36940), (3694, 35630), (5090, 25858), (7126, 18470), (7388, 17815), (9235, 14252), (10180, 12929)]