19994590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1129}}^1$

素因数の和:1177

約数の個数: 64

約数和(自身を含む): 46863360

約数和(自身を除く): 26868770

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 23, 35, 46, 55, 70, 77, 110, 115, 154, 161, 230, 253, 322, 385, 506, 770, 805, 1129, 1265, 1610, 1771, 2258, 2530, 3542, 5645, 7903, 8855, 11290, 12419, 15806, 17710, 24838, 25967, 39515, 51934, 62095, 79030, 86933, 124190, 129835, 173866, 181769, 259670, 285637, 363538, 434665, 571274, 869330, 908845, 1428185, 1817690, 1999459, 2856370, 3998918, 9997295, 19994590]

約数ペア:

[(1, 19994590), (2, 9997295), (5, 3998918), (7, 2856370), (10, 1999459), (11, 1817690), (14, 1428185), (22, 908845), (23, 869330), (35, 571274), (46, 434665), (55, 363538), (70, 285637), (77, 259670), (110, 181769), (115, 173866), (154, 129835), (161, 124190), (230, 86933), (253, 79030), (322, 62095), (385, 51934), (506, 39515), (770, 25967), (805, 24838), (1129, 17710), (1265, 15806), (1610, 12419), (1771, 11290), (2258, 8855), (2530, 7903), (3542, 5645)]