19880004

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{223}}^1$

素因数の和:289

約数の個数: 96

約数和(自身を含む): 54190080

約数和(自身を除く): 34310076

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 23, 34, 38, 46, 51, 57, 68, 69, 76, 92, 102, 114, 138, 204, 223, 228, 276, 323, 391, 437, 446, 646, 669, 782, 874, 892, 969, 1173, 1292, 1311, 1338, 1564, 1748, 1938, 2346, 2622, 2676, 3791, 3876, 4237, 4692, 5129, 5244, 7429, 7582, 8474, 10258, 11373, 12711, 14858, 15164, 15387, 16948, 20516, 22287, 22746, 25422, 29716, 30774, 44574, 45492, 50844, 61548, 72029, 87193, 89148, 97451, 144058, 174386, 194902, 216087, 261579, 288116, 292353, 348772, 389804, 432174, 523158, 584706, 864348, 1046316, 1169412, 1656667, 3313334, 4970001, 6626668, 9940002, 19880004]

約数ペア:

[(1, 19880004), (2, 9940002), (3, 6626668), (4, 4970001), (6, 3313334), (12, 1656667), (17, 1169412), (19, 1046316), (23, 864348), (34, 584706), (38, 523158), (46, 432174), (51, 389804), (57, 348772), (68, 292353), (69, 288116), (76, 261579), (92, 216087), (102, 194902), (114, 174386), (138, 144058), (204, 97451), (223, 89148), (228, 87193), (276, 72029), (323, 61548), (391, 50844), (437, 45492), (446, 44574), (646, 30774), (669, 29716), (782, 25422), (874, 22746), (892, 22287), (969, 20516), (1173, 16948), (1292, 15387), (1311, 15164), (1338, 14858), (1564, 12711), (1748, 11373), (1938, 10258), (2346, 8474), (2622, 7582), (2676, 7429), (3791, 5244), (3876, 5129), (4237, 4692)]