85517320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{305419}}^1$

素因数の和:305437

約数の個数: 32

約数和(自身を含む): 219902400

約数和(自身を除く): 134385080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 305419, 610838, 1221676, 1527095, 2137933, 2443352, 3054190, 4275866, 6108380, 8551732, 10689665, 12216760, 17103464, 21379330, 42758660, 85517320]

約数ペア:

[(1, 85517320), (2, 42758660), (4, 21379330), (5, 17103464), (7, 12216760), (8, 10689665), (10, 8551732), (14, 6108380), (20, 4275866), (28, 3054190), (35, 2443352), (40, 2137933), (56, 1527095), (70, 1221676), (140, 610838), (280, 305419)]