19890416

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1$

素因数の和:766

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 30106384

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 38, 52, 56, 76, 91, 104, 112, 133, 152, 182, 208, 247, 266, 304, 364, 494, 532, 719, 728, 988, 1064, 1438, 1456, 1729, 1976, 2128, 2876, 3458, 3952, 5033, 5752, 6916, 9347, 10066, 11504, 13661, 13832, 18694, 20132, 27322, 27664, 37388, 40264, 54644, 65429, 74776, 80528, 95627, 109288, 130858, 149552, 177593, 191254, 218576, 261716, 355186, 382508, 523432, 710372, 765016, 1046864, 1243151, 1420744, 1530032, 2486302, 2841488, 4972604, 9945208, 19890416]

約数ペア:

[(1, 19890416), (2, 9945208), (4, 4972604), (7, 2841488), (8, 2486302), (13, 1530032), (14, 1420744), (16, 1243151), (19, 1046864), (26, 765016), (28, 710372), (38, 523432), (52, 382508), (56, 355186), (76, 261716), (91, 218576), (104, 191254), (112, 177593), (133, 149552), (152, 130858), (182, 109288), (208, 95627), (247, 80528), (266, 74776), (304, 65429), (364, 54644), (494, 40264), (532, 37388), (719, 27664), (728, 27322), (988, 20132), (1064, 18694), (1438, 13832), (1456, 13661), (1729, 11504), (1976, 10066), (2128, 9347), (2876, 6916), (3458, 5752), (3952, 5033)]