81230672

素因数分解:

$2^4\times {\mathrm{409}}^1\times {\mathrm{12413}}^1$

素因数の和:12830

約数の個数: 20

約数和(自身を含む): 157781940

約数和(自身を除く): 76551268

約数列:

[1, 2, 4, 8, 16, 409, 818, 1636, 3272, 6544, 12413, 24826, 49652, 99304, 198608, 5076917, 10153834, 20307668, 40615336, 81230672]

約数ペア:

[(1, 81230672), (2, 40615336), (4, 20307668), (8, 10153834), (16, 5076917), (409, 198608), (818, 99304), (1636, 49652), (3272, 24826), (6544, 12413)]