81695536

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392767}}^1$

素因数の和:392788

約数の個数: 20

約数和(自身を含む): 170461312

約数和(自身を除く): 88765776

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392767, 785534, 1571068, 3142136, 5105971, 6284272, 10211942, 20423884, 40847768, 81695536]

約数ペア:

[(1, 81695536), (2, 40847768), (4, 20423884), (8, 10211942), (13, 6284272), (16, 5105971), (26, 3142136), (52, 1571068), (104, 785534), (208, 392767)]