20789810

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{4217}}^1$

素因数の和:4270

約数の個数: 32

約数和(自身を含む): 40998960

約数和(自身を除く): 20209150

約数列:

[1, 2, 5, 10, 17, 29, 34, 58, 85, 145, 170, 290, 493, 986, 2465, 4217, 4930, 8434, 21085, 42170, 71689, 122293, 143378, 244586, 358445, 611465, 716890, 1222930, 2078981, 4157962, 10394905, 20789810]

約数ペア:

[(1, 20789810), (2, 10394905), (5, 4157962), (10, 2078981), (17, 1222930), (29, 716890), (34, 611465), (58, 358445), (85, 244586), (145, 143378), (170, 122293), (290, 71689), (493, 42170), (986, 21085), (2465, 8434), (4217, 4930)]