81781142

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{7853}}^1$

素因数の和:8023

約数の個数: 16

約数和(自身を含む): 126669312

約数和(自身を除く): 44888170

約数列:

[1, 2, 41, 82, 127, 254, 5207, 7853, 10414, 15706, 321973, 643946, 997331, 1994662, 40890571, 81781142]

約数ペア:

[(1, 81781142), (2, 40890571), (41, 1994662), (82, 997331), (127, 643946), (254, 321973), (5207, 15706), (7853, 10414)]