161981390

素因数分解:

$2^1\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{8311}}^1$

素因数の和:10267

約数の個数: 16

約数和(自身を含む): 291751200

約数和(自身を除く): 129769810

約数列:

[1, 2, 5, 10, 1949, 3898, 8311, 9745, 16622, 19490, 41555, 83110, 16198139, 32396278, 80990695, 161981390]

約数ペア:

[(1, 161981390), (2, 80990695), (5, 32396278), (10, 16198139), (1949, 83110), (3898, 41555), (8311, 19490), (9745, 16622)]