81781385

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{44087}}^1$

素因数の和:44152

約数の個数: 16

約数和(自身を含む): 114276096

約数和(自身を除く): 32494711

約数列:

[1, 5, 7, 35, 53, 265, 371, 1855, 44087, 220435, 308609, 1543045, 2336611, 11683055, 16356277, 81781385]

約数ペア:

[(1, 81781385), (5, 16356277), (7, 11683055), (35, 2336611), (53, 1543045), (265, 308609), (371, 220435), (1855, 44087)]