20281470

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{1499}}^1$

素因数の和:1561

約数の個数: 64

約数和(自身を含む): 54432000

約数和(自身を除く): 34150530

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 30, 33, 41, 55, 66, 82, 110, 123, 165, 205, 246, 330, 410, 451, 615, 902, 1230, 1353, 1499, 2255, 2706, 2998, 4497, 4510, 6765, 7495, 8994, 13530, 14990, 16489, 22485, 32978, 44970, 49467, 61459, 82445, 98934, 122918, 164890, 184377, 247335, 307295, 368754, 494670, 614590, 676049, 921885, 1352098, 1843770, 2028147, 3380245, 4056294, 6760490, 10140735, 20281470]

約数ペア:

[(1, 20281470), (2, 10140735), (3, 6760490), (5, 4056294), (6, 3380245), (10, 2028147), (11, 1843770), (15, 1352098), (22, 921885), (30, 676049), (33, 614590), (41, 494670), (55, 368754), (66, 307295), (82, 247335), (110, 184377), (123, 164890), (165, 122918), (205, 98934), (246, 82445), (330, 61459), (410, 49467), (451, 44970), (615, 32978), (902, 22485), (1230, 16489), (1353, 14990), (1499, 13530), (2255, 8994), (2706, 7495), (2998, 6765), (4497, 4510)]