81178256

素因数分解:

$2^4\times {\mathrm{659}}^1\times {\mathrm{7699}}^1$

素因数の和:8366

約数の個数: 20

約数和(自身を含む): 157542000

約数和(自身を除く): 76363744

約数列:

[1, 2, 4, 8, 16, 659, 1318, 2636, 5272, 7699, 10544, 15398, 30796, 61592, 123184, 5073641, 10147282, 20294564, 40589128, 81178256]

約数ペア:

[(1, 81178256), (2, 40589128), (4, 20294564), (8, 10147282), (16, 5073641), (659, 123184), (1318, 61592), (2636, 30796), (5272, 15398), (7699, 10544)]