19988580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4217}}^1$

素因数の和:4308

約数の個数: 48

約数和(自身を含む): 56689920

約数和(自身を除く): 36701340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4217, 4740, 8434, 12651, 16868, 21085, 25302, 42170, 50604, 63255, 84340, 126510, 253020, 333143, 666286, 999429, 1332572, 1665715, 1998858, 3331430, 3997716, 4997145, 6662860, 9994290, 19988580]

約数ペア:

[(1, 19988580), (2, 9994290), (3, 6662860), (4, 4997145), (5, 3997716), (6, 3331430), (10, 1998858), (12, 1665715), (15, 1332572), (20, 999429), (30, 666286), (60, 333143), (79, 253020), (158, 126510), (237, 84340), (316, 63255), (395, 50604), (474, 42170), (790, 25302), (948, 21085), (1185, 16868), (1580, 12651), (2370, 8434), (4217, 4740)]