20386280

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22159}}^1$

素因数の和:22193

約数の個数: 32

約数和(自身を含む): 47865600

約数和(自身を除く): 27479320

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22159, 44318, 88636, 110795, 177272, 221590, 443180, 509657, 886360, 1019314, 2038628, 2548285, 4077256, 5096570, 10193140, 20386280]

約数ペア:

[(1, 20386280), (2, 10193140), (4, 5096570), (5, 4077256), (8, 2548285), (10, 2038628), (20, 1019314), (23, 886360), (40, 509657), (46, 443180), (92, 221590), (115, 177272), (184, 110795), (230, 88636), (460, 44318), (920, 22159)]