784087120

素因数分解:

$2^4\times 5^1\times {\mathrm{9801089}}^1$

素因数の和:9801102

約数の個数: 20

約数和(自身を含む): 1823002740

約数和(自身を除く): 1038915620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 9801089, 19602178, 39204356, 49005445, 78408712, 98010890, 156817424, 196021780, 392043560, 784087120]

約数ペア:

[(1, 784087120), (2, 392043560), (4, 196021780), (5, 156817424), (8, 98010890), (10, 78408712), (16, 49005445), (20, 39204356), (40, 19602178), (80, 9801089)]