81145648

素因数分解:

$2^4\times {\mathrm{137}}^1\times {\mathrm{37019}}^1$

素因数の和:37164

約数の個数: 20

約数和(自身を含む): 158371560

約数和(自身を除く): 77225912

約数列:

[1, 2, 4, 8, 16, 137, 274, 548, 1096, 2192, 37019, 74038, 148076, 296152, 592304, 5071603, 10143206, 20286412, 40572824, 81145648]

約数ペア:

[(1, 81145648), (2, 40572824), (4, 20286412), (8, 10143206), (16, 5071603), (137, 592304), (274, 296152), (548, 148076), (1096, 74038), (2192, 37019)]