20481560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46549}}^1$

素因数の和:46571

約数の個数: 32

約数和(自身を含む): 50274000

約数和(自身を除く): 29792440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46549, 93098, 186196, 232745, 372392, 465490, 512039, 930980, 1024078, 1861960, 2048156, 2560195, 4096312, 5120390, 10240780, 20481560]

約数ペア:

[(1, 20481560), (2, 10240780), (4, 5120390), (5, 4096312), (8, 2560195), (10, 2048156), (11, 1861960), (20, 1024078), (22, 930980), (40, 512039), (44, 465490), (55, 372392), (88, 232745), (110, 186196), (220, 93098), (440, 46549)]