20280572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1$

素因数の和:618

約数の個数: 48

約数和(自身を含む): 41244672

約数和(自身を除く): 20964100

約数列:

[1, 2, 4, 13, 23, 26, 31, 46, 52, 62, 92, 124, 299, 403, 547, 598, 713, 806, 1094, 1196, 1426, 1612, 2188, 2852, 7111, 9269, 12581, 14222, 16957, 18538, 25162, 28444, 33914, 37076, 50324, 67828, 163553, 220441, 327106, 390011, 440882, 654212, 780022, 881764, 1560044, 5070143, 10140286, 20280572]

約数ペア:

[(1, 20280572), (2, 10140286), (4, 5070143), (13, 1560044), (23, 881764), (26, 780022), (31, 654212), (46, 440882), (52, 390011), (62, 327106), (92, 220441), (124, 163553), (299, 67828), (403, 50324), (547, 37076), (598, 33914), (713, 28444), (806, 25162), (1094, 18538), (1196, 16957), (1426, 14222), (1612, 12581), (2188, 9269), (2852, 7111)]