81694288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{392761}}^1$

素因数の和:392782

約数の個数: 20

約数和(自身を含む): 170458708

約数和(自身を除く): 88764420

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 392761, 785522, 1571044, 3142088, 5105893, 6284176, 10211786, 20423572, 40847144, 81694288]

約数ペア:

[(1, 81694288), (2, 40847144), (4, 20423572), (8, 10211786), (13, 6284176), (16, 5105893), (26, 3142088), (52, 1571044), (104, 785522), (208, 392761)]