31127120

素因数分解:

$2^4\times 5^1\times {\mathrm{389089}}^1$

素因数の和:389102

約数の個数: 20

約数和(自身を含む): 72370740

約数和(自身を除く): 41243620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389089, 778178, 1556356, 1945445, 3112712, 3890890, 6225424, 7781780, 15563560, 31127120]

約数ペア:

[(1, 31127120), (2, 15563560), (4, 7781780), (5, 6225424), (8, 3890890), (10, 3112712), (16, 1945445), (20, 1556356), (40, 778178), (80, 389089)]