65663728

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{315691}}^1$

素因数の和:315712

約数の個数: 20

約数和(自身を含む): 137010328

約数和(自身を除く): 71346600

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 315691, 631382, 1262764, 2525528, 4103983, 5051056, 8207966, 16415932, 32831864, 65663728]

約数ペア:

[(1, 65663728), (2, 32831864), (4, 16415932), (8, 8207966), (13, 5051056), (16, 4103983), (26, 2525528), (52, 1262764), (104, 631382), (208, 315691)]