20010920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{21751}}^1$

素因数の和:21785

約数の個数: 32

約数和(自身を含む): 46984320

約数和(自身を除く): 26973400

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 21751, 43502, 87004, 108755, 174008, 217510, 435020, 500273, 870040, 1000546, 2001092, 2501365, 4002184, 5002730, 10005460, 20010920]

約数ペア:

[(1, 20010920), (2, 10005460), (4, 5002730), (5, 4002184), (8, 2501365), (10, 2001092), (20, 1000546), (23, 870040), (40, 500273), (46, 435020), (92, 217510), (115, 174008), (184, 108755), (230, 87004), (460, 43502), (920, 21751)]