81940796

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:710

約数の個数: 48

約数和(自身を含む): 169428672

約数和(自身を除く): 87487876

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 137, 164, 274, 287, 521, 548, 574, 959, 1042, 1148, 1918, 2084, 3647, 3836, 5617, 7294, 11234, 14588, 21361, 22468, 39319, 42722, 71377, 78638, 85444, 142754, 149527, 157276, 285508, 299054, 499639, 598108, 999278, 1998556, 2926457, 5852914, 11705828, 20485199, 40970398, 81940796]

約数ペア:

[(1, 81940796), (2, 40970398), (4, 20485199), (7, 11705828), (14, 5852914), (28, 2926457), (41, 1998556), (82, 999278), (137, 598108), (164, 499639), (274, 299054), (287, 285508), (521, 157276), (548, 149527), (574, 142754), (959, 85444), (1042, 78638), (1148, 71377), (1918, 42722), (2084, 39319), (3647, 22468), (3836, 21361), (5617, 14588), (7294, 11234)]