81963388

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{2459}}^1$

素因数の和:3117

約数の個数: 24

約数和(自身を含む): 154773360

約数和(自身を除く): 72809972

約数列:

[1, 2, 4, 13, 26, 52, 641, 1282, 2459, 2564, 4918, 8333, 9836, 16666, 31967, 33332, 63934, 127868, 1576219, 3152438, 6304876, 20490847, 40981694, 81963388]

約数ペア:

[(1, 81963388), (2, 40981694), (4, 20490847), (13, 6304876), (26, 3152438), (52, 1576219), (641, 127868), (1282, 63934), (2459, 33332), (2564, 31967), (4918, 16666), (8333, 9836)]