1815440

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2063}}^1$

素因数の和:2087

約数の個数: 40

約数和(自身を含む): 4606848

約数和(自身を除く): 2791408

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2063, 4126, 8252, 10315, 16504, 20630, 22693, 33008, 41260, 45386, 82520, 90772, 113465, 165040, 181544, 226930, 363088, 453860, 907720, 1815440]

約数ペア:

[(1, 1815440), (2, 907720), (4, 453860), (5, 363088), (8, 226930), (10, 181544), (11, 165040), (16, 113465), (20, 90772), (22, 82520), (40, 45386), (44, 41260), (55, 33008), (80, 22693), (88, 20630), (110, 16504), (176, 10315), (220, 8252), (440, 4126), (880, 2063)]