20078044

素因数分解:

$2^2\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1151}}^1$

素因数の和:1258

約数の個数: 36

約数和(自身を含む): 41368320

約数和(自身を除く): 21290276

約数列:

[1, 2, 4, 7, 14, 28, 49, 89, 98, 178, 196, 356, 623, 1151, 1246, 2302, 2492, 4361, 4604, 8057, 8722, 16114, 17444, 32228, 56399, 102439, 112798, 204878, 225596, 409756, 717073, 1434146, 2868292, 5019511, 10039022, 20078044]

約数ペア:

[(1, 20078044), (2, 10039022), (4, 5019511), (7, 2868292), (14, 1434146), (28, 717073), (49, 409756), (89, 225596), (98, 204878), (178, 112798), (196, 102439), (356, 56399), (623, 32228), (1151, 17444), (1246, 16114), (2302, 8722), (2492, 8057), (4361, 4604)]