8787740

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{463}}^1$

素因数の和:558

約数の個数: 48

約数和(自身を含む): 20189568

約数和(自身を除く): 11401828

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 463, 730, 926, 949, 1460, 1852, 1898, 2315, 3796, 4630, 4745, 6019, 9260, 9490, 12038, 18980, 24076, 30095, 33799, 60190, 67598, 120380, 135196, 168995, 337990, 439387, 675980, 878774, 1757548, 2196935, 4393870, 8787740]

約数ペア:

[(1, 8787740), (2, 4393870), (4, 2196935), (5, 1757548), (10, 878774), (13, 675980), (20, 439387), (26, 337990), (52, 168995), (65, 135196), (73, 120380), (130, 67598), (146, 60190), (260, 33799), (292, 30095), (365, 24076), (463, 18980), (730, 12038), (926, 9490), (949, 9260), (1460, 6019), (1852, 4745), (1898, 4630), (2315, 3796)]