20659270

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{479}}^1$

素因数の和:732

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18739130

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 227, 454, 479, 958, 1135, 2270, 2395, 4313, 4790, 8626, 9101, 18202, 21565, 43130, 45505, 91010, 108733, 217466, 543665, 1087330, 2065927, 4131854, 10329635, 20659270]

約数ペア:

[(1, 20659270), (2, 10329635), (5, 4131854), (10, 2065927), (19, 1087330), (38, 543665), (95, 217466), (190, 108733), (227, 91010), (454, 45505), (479, 43130), (958, 21565), (1135, 18202), (2270, 9101), (2395, 8626), (4313, 4790)]