20278315768

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{149105263}}^1$

素因数の和:149105286

約数の個数: 16

約数和(自身を含む): 40258421280

約数和(自身を除く): 19980105512

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 149105263, 298210526, 596421052, 1192842104, 2534789471, 5069578942, 10139157884, 20278315768]

約数ペア:

[(1, 20278315768), (2, 10139157884), (4, 5069578942), (8, 2534789471), (17, 1192842104), (34, 596421052), (68, 298210526), (136, 149105263)]