15684920

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2053}}^1$

素因数の和:2255

約数の個数: 32

約数和(自身を含む): 35493120

約数和(自身を除く): 19808200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2053, 3820, 4106, 7640, 8212, 10265, 16424, 20530, 41060, 82120, 392123, 784246, 1568492, 1960615, 3136984, 3921230, 7842460, 15684920]

約数ペア:

[(1, 15684920), (2, 7842460), (4, 3921230), (5, 3136984), (8, 1960615), (10, 1568492), (20, 784246), (40, 392123), (191, 82120), (382, 41060), (764, 20530), (955, 16424), (1528, 10265), (1910, 8212), (2053, 7640), (3820, 4106)]