127281680

素因数分解:

$2^4\times 5^1\times {\mathrm{1591021}}^1$

素因数の和:1591034

約数の個数: 20

約数和(自身を含む): 295930092

約数和(自身を除く): 168648412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1591021, 3182042, 6364084, 7955105, 12728168, 15910210, 25456336, 31820420, 63640840, 127281680]

約数ペア:

[(1, 127281680), (2, 63640840), (4, 31820420), (5, 25456336), (8, 15910210), (10, 12728168), (16, 7955105), (20, 6364084), (40, 3182042), (80, 1591021)]