20717290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{569}}^1$

素因数の和:918

約数の個数: 32

約数和(自身を含む): 40875840

約数和(自身を除く): 20158550

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 331, 569, 662, 1138, 1655, 2845, 3310, 3641, 5690, 6259, 7282, 12518, 18205, 31295, 36410, 62590, 188339, 376678, 941695, 1883390, 2071729, 4143458, 10358645, 20717290]

約数ペア:

[(1, 20717290), (2, 10358645), (5, 4143458), (10, 2071729), (11, 1883390), (22, 941695), (55, 376678), (110, 188339), (331, 62590), (569, 36410), (662, 31295), (1138, 18205), (1655, 12518), (2845, 7282), (3310, 6259), (3641, 5690)]