205156

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{431}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 435456

約数和(自身を除く): 230300

約数列:

[1, 2, 4, 7, 14, 17, 28, 34, 68, 119, 238, 431, 476, 862, 1724, 3017, 6034, 7327, 12068, 14654, 29308, 51289, 102578, 205156]

約数ペア:

[(1, 205156), (2, 102578), (4, 51289), (7, 29308), (14, 14654), (17, 12068), (28, 7327), (34, 6034), (68, 3017), (119, 1724), (238, 862), (431, 476)]