18785195

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:132

約数の個数: 48

約数和(自身を含む): 27827712

約数和(自身を除く): 9042517

約数列:

[1, 5, 11, 13, 43, 47, 55, 65, 143, 169, 215, 235, 473, 517, 559, 611, 715, 845, 1859, 2021, 2365, 2585, 2795, 3055, 6149, 6721, 7267, 7943, 9295, 10105, 22231, 26273, 30745, 33605, 36335, 39715, 79937, 87373, 111155, 131365, 289003, 341549, 399685, 436865, 1445015, 1707745, 3757039, 18785195]

約数ペア:

[(1, 18785195), (5, 3757039), (11, 1707745), (13, 1445015), (43, 436865), (47, 399685), (55, 341549), (65, 289003), (143, 131365), (169, 111155), (215, 87373), (235, 79937), (473, 39715), (517, 36335), (559, 33605), (611, 30745), (715, 26273), (845, 22231), (1859, 10105), (2021, 9295), (2365, 7943), (2585, 7267), (2795, 6721), (3055, 6149)]