19950040

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{45341}}^1$

素因数の和:45363

約数の個数: 32

約数和(自身を含む): 48969360

約数和(自身を除く): 29019320

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 45341, 90682, 181364, 226705, 362728, 453410, 498751, 906820, 997502, 1813640, 1995004, 2493755, 3990008, 4987510, 9975020, 19950040]

約数ペア:

[(1, 19950040), (2, 9975020), (4, 4987510), (5, 3990008), (8, 2493755), (10, 1995004), (11, 1813640), (20, 997502), (22, 906820), (40, 498751), (44, 453410), (55, 362728), (88, 226705), (110, 181364), (220, 90682), (440, 45341)]