81968848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:284

約数の個数: 80

約数和(自身を含む): 179988480

約数和(自身を除く): 98019632

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 52, 58, 104, 107, 116, 127, 208, 214, 232, 254, 377, 428, 464, 508, 754, 856, 1016, 1391, 1508, 1651, 1712, 2032, 2782, 3016, 3103, 3302, 3683, 5564, 6032, 6206, 6604, 7366, 11128, 12412, 13208, 13589, 14732, 22256, 24824, 26416, 27178, 29464, 40339, 47879, 49648, 54356, 58928, 80678, 95758, 108712, 161356, 176657, 191516, 217424, 322712, 353314, 383032, 394081, 645424, 706628, 766064, 788162, 1413256, 1576324, 2826512, 3152648, 5123053, 6305296, 10246106, 20492212, 40984424, 81968848]

約数ペア:

[(1, 81968848), (2, 40984424), (4, 20492212), (8, 10246106), (13, 6305296), (16, 5123053), (26, 3152648), (29, 2826512), (52, 1576324), (58, 1413256), (104, 788162), (107, 766064), (116, 706628), (127, 645424), (208, 394081), (214, 383032), (232, 353314), (254, 322712), (377, 217424), (428, 191516), (464, 176657), (508, 161356), (754, 108712), (856, 95758), (1016, 80678), (1391, 58928), (1508, 54356), (1651, 49648), (1712, 47879), (2032, 40339), (2782, 29464), (3016, 27178), (3103, 26416), (3302, 24824), (3683, 22256), (5564, 14732), (6032, 13589), (6206, 13208), (6604, 12412), (7366, 11128)]