538778220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{390419}}^1$

素因数の和:390454

約数の個数: 48

約数和(自身を含む): 1574173440

約数和(自身を除く): 1035395220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 390419, 780838, 1171257, 1561676, 1952095, 2342514, 3904190, 4685028, 5856285, 7808380, 8979637, 11712570, 17959274, 23425140, 26938911, 35918548, 44898185, 53877822, 89796370, 107755644, 134694555, 179592740, 269389110, 538778220]

約数ペア:

[(1, 538778220), (2, 269389110), (3, 179592740), (4, 134694555), (5, 107755644), (6, 89796370), (10, 53877822), (12, 44898185), (15, 35918548), (20, 26938911), (23, 23425140), (30, 17959274), (46, 11712570), (60, 8979637), (69, 7808380), (92, 5856285), (115, 4685028), (138, 3904190), (230, 2342514), (276, 1952095), (345, 1561676), (460, 1171257), (690, 780838), (1380, 390419)]