81019270

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{218971}}^1$

素因数の和:219015

約数の個数: 16

約数和(自身を含む): 149776848

約数和(自身を除く): 68757578

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 218971, 437942, 1094855, 2189710, 8101927, 16203854, 40509635, 81019270]

約数ペア:

[(1, 81019270), (2, 40509635), (5, 16203854), (10, 8101927), (37, 2189710), (74, 1094855), (185, 437942), (370, 218971)]