81419792

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{108271}}^1$

素因数の和:108326

約数の個数: 20

約数和(自身を含む): 161108736

約数和(自身を除く): 79688944

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 108271, 216542, 433084, 866168, 1732336, 5088737, 10177474, 20354948, 40709896, 81419792]

約数ペア:

[(1, 81419792), (2, 40709896), (4, 20354948), (8, 10177474), (16, 5088737), (47, 1732336), (94, 866168), (188, 433084), (376, 216542), (752, 108271)]