128487684

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^2$

素因数の和:377

約数の個数: 72

約数和(自身を含む): 335338752

約数和(自身を除く): 206851068

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 31, 39, 52, 62, 78, 93, 124, 156, 163, 186, 326, 372, 403, 489, 652, 806, 978, 1209, 1612, 1956, 2119, 2418, 4238, 4836, 5053, 6357, 8476, 10106, 12714, 15159, 20212, 25428, 26569, 30318, 53138, 60636, 65689, 79707, 106276, 131378, 159414, 197067, 262756, 318828, 345397, 394134, 690794, 788268, 823639, 1036191, 1381588, 1647278, 2072382, 2470917, 3294556, 4144764, 4941834, 9883668, 10707307, 21414614, 32121921, 42829228, 64243842, 128487684]

約数ペア:

[(1, 128487684), (2, 64243842), (3, 42829228), (4, 32121921), (6, 21414614), (12, 10707307), (13, 9883668), (26, 4941834), (31, 4144764), (39, 3294556), (52, 2470917), (62, 2072382), (78, 1647278), (93, 1381588), (124, 1036191), (156, 823639), (163, 788268), (186, 690794), (326, 394134), (372, 345397), (403, 318828), (489, 262756), (652, 197067), (806, 159414), (978, 131378), (1209, 106276), (1612, 79707), (1956, 65689), (2119, 60636), (2418, 53138), (4238, 30318), (4836, 26569), (5053, 25428), (6357, 20212), (8476, 15159), (10106, 12714)]