15287780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{40231}}^1$

素因数の和:40259

約数の個数: 24

約数和(自身を含む): 33794880

約数和(自身を除く): 18507100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 40231, 80462, 160924, 201155, 402310, 764389, 804620, 1528778, 3057556, 3821945, 7643890, 15287780]

約数ペア:

[(1, 15287780), (2, 7643890), (4, 3821945), (5, 3057556), (10, 1528778), (19, 804620), (20, 764389), (38, 402310), (76, 201155), (95, 160924), (190, 80462), (380, 40231)]