81778288

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{138139}}^1$

素因数の和:138184

約数の個数: 20

約数和(自身を含む): 162728920

約数和(自身を除く): 80950632

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 138139, 276278, 552556, 1105112, 2210224, 5111143, 10222286, 20444572, 40889144, 81778288]

約数ペア:

[(1, 81778288), (2, 40889144), (4, 20444572), (8, 10222286), (16, 5111143), (37, 2210224), (74, 1105112), (148, 552556), (296, 276278), (592, 138139)]