216317255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{5563}}^1$

素因数の和:5687

約数の個数: 32

約数和(自身を含む): 326896128

約数和(自身を除く): 110578873

約数列:

[1, 5, 7, 11, 35, 55, 77, 101, 385, 505, 707, 1111, 3535, 5555, 5563, 7777, 27815, 38885, 38941, 61193, 194705, 305965, 428351, 561863, 2141755, 2809315, 3933041, 6180493, 19665205, 30902465, 43263451, 216317255]

約数ペア:

[(1, 216317255), (5, 43263451), (7, 30902465), (11, 19665205), (35, 6180493), (55, 3933041), (77, 2809315), (101, 2141755), (385, 561863), (505, 428351), (707, 305965), (1111, 194705), (3535, 61193), (5555, 38941), (5563, 38885), (7777, 27815)]