20108504

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{809}}^1$

素因数の和:1067

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 20715496

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 239, 478, 809, 956, 1618, 1912, 3107, 3236, 6214, 6472, 10517, 12428, 21034, 24856, 42068, 84136, 193351, 386702, 773404, 1546808, 2513563, 5027126, 10054252, 20108504]

約数ペア:

[(1, 20108504), (2, 10054252), (4, 5027126), (8, 2513563), (13, 1546808), (26, 773404), (52, 386702), (104, 193351), (239, 84136), (478, 42068), (809, 24856), (956, 21034), (1618, 12428), (1912, 10517), (3107, 6472), (3236, 6214)]