20031856

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{499}}^1$

素因数の和:713

約数の個数: 40

約数和(自身を含む): 42098000

約数和(自身を除く): 22066144

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 193, 208, 386, 499, 772, 998, 1544, 1996, 2509, 3088, 3992, 5018, 6487, 7984, 10036, 12974, 20072, 25948, 40144, 51896, 96307, 103792, 192614, 385228, 770456, 1251991, 1540912, 2503982, 5007964, 10015928, 20031856]

約数ペア:

[(1, 20031856), (2, 10015928), (4, 5007964), (8, 2503982), (13, 1540912), (16, 1251991), (26, 770456), (52, 385228), (104, 192614), (193, 103792), (208, 96307), (386, 51896), (499, 40144), (772, 25948), (998, 20072), (1544, 12974), (1996, 10036), (2509, 7984), (3088, 6487), (3992, 5018)]