201220784

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{306739}}^1$

素因数の和:306788

約数の個数: 20

約数和(自身を含む): 399375480

約数和(自身を除く): 198154696

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 306739, 613478, 1226956, 2453912, 4907824, 12576299, 25152598, 50305196, 100610392, 201220784]

約数ペア:

[(1, 201220784), (2, 100610392), (4, 50305196), (8, 25152598), (16, 12576299), (41, 4907824), (82, 2453912), (164, 1226956), (328, 613478), (656, 306739)]