80988848

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{71293}}^1$

素因数の和:71372

約数の個数: 20

約数和(自身を含む): 159128208

約数和(自身を除く): 78139360

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 71293, 142586, 285172, 570344, 1140688, 5061803, 10123606, 20247212, 40494424, 80988848]

約数ペア:

[(1, 80988848), (2, 40494424), (4, 20247212), (8, 10123606), (16, 5061803), (71, 1140688), (142, 570344), (284, 285172), (568, 142586), (1136, 71293)]