67351580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{421}}^2$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 149236920

約数和(自身を除く): 81885340

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 421, 842, 1684, 2105, 4210, 7999, 8420, 15998, 31996, 39995, 79990, 159980, 177241, 354482, 708964, 886205, 1772410, 3367579, 3544820, 6735158, 13470316, 16837895, 33675790, 67351580]

約数ペア:

[(1, 67351580), (2, 33675790), (4, 16837895), (5, 13470316), (10, 6735158), (19, 3544820), (20, 3367579), (38, 1772410), (76, 886205), (95, 708964), (190, 354482), (380, 177241), (421, 159980), (842, 79990), (1684, 39995), (2105, 31996), (4210, 15998), (7999, 8420)]