64887215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{433}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 86619456

約数和(自身を除く): 21732241

約数列:

[1, 5, 17, 41, 43, 85, 205, 215, 433, 697, 731, 1763, 2165, 3485, 3655, 7361, 8815, 17753, 18619, 29971, 36805, 88765, 93095, 149855, 301801, 316523, 763379, 1509005, 1582615, 3816895, 12977443, 64887215]

約数ペア:

[(1, 64887215), (5, 12977443), (17, 3816895), (41, 1582615), (43, 1509005), (85, 763379), (205, 316523), (215, 301801), (433, 149855), (697, 93095), (731, 88765), (1763, 36805), (2165, 29971), (3485, 18619), (3655, 17753), (7361, 8815)]