11720920

素因数分解:

$2^3\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1637}}^1$

素因数の和:1827

約数の個数: 32

約数和(自身を含む): 26535600

約数和(自身を除く): 14814680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 179, 358, 716, 895, 1432, 1637, 1790, 3274, 3580, 6548, 7160, 8185, 13096, 16370, 32740, 65480, 293023, 586046, 1172092, 1465115, 2344184, 2930230, 5860460, 11720920]

約数ペア:

[(1, 11720920), (2, 5860460), (4, 2930230), (5, 2344184), (8, 1465115), (10, 1172092), (20, 586046), (40, 293023), (179, 65480), (358, 32740), (716, 16370), (895, 13096), (1432, 8185), (1637, 7160), (1790, 6548), (3274, 3580)]