20342960

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23117}}^1$

素因数の和:23141

約数の個数: 40

約数和(自身を含む): 51599376

約数和(自身を除く): 31256416

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 23117, 46234, 92468, 115585, 184936, 231170, 254287, 369872, 462340, 508574, 924680, 1017148, 1271435, 1849360, 2034296, 2542870, 4068592, 5085740, 10171480, 20342960]

約数ペア:

[(1, 20342960), (2, 10171480), (4, 5085740), (5, 4068592), (8, 2542870), (10, 2034296), (11, 1849360), (16, 1271435), (20, 1017148), (22, 924680), (40, 508574), (44, 462340), (55, 369872), (80, 254287), (88, 231170), (110, 184936), (176, 115585), (220, 92468), (440, 46234), (880, 23117)]