20081784

素因数分解:

$2^3\times 3^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{937}}^1$

素因数の和:1012

約数の個数: 64

約数和(自身を含む): 54028800

約数和(自身を除く): 33947016

約数列:

[1, 2, 3, 4, 6, 8, 12, 19, 24, 38, 47, 57, 76, 94, 114, 141, 152, 188, 228, 282, 376, 456, 564, 893, 937, 1128, 1786, 1874, 2679, 2811, 3572, 3748, 5358, 5622, 7144, 7496, 10716, 11244, 17803, 21432, 22488, 35606, 44039, 53409, 71212, 88078, 106818, 132117, 142424, 176156, 213636, 264234, 352312, 427272, 528468, 836741, 1056936, 1673482, 2510223, 3346964, 5020446, 6693928, 10040892, 20081784]

約数ペア:

[(1, 20081784), (2, 10040892), (3, 6693928), (4, 5020446), (6, 3346964), (8, 2510223), (12, 1673482), (19, 1056936), (24, 836741), (38, 528468), (47, 427272), (57, 352312), (76, 264234), (94, 213636), (114, 176156), (141, 142424), (152, 132117), (188, 106818), (228, 88078), (282, 71212), (376, 53409), (456, 44039), (564, 35606), (893, 22488), (937, 21432), (1128, 17803), (1786, 11244), (1874, 10716), (2679, 7496), (2811, 7144), (3572, 5622), (3748, 5358)]