18509540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:189

約数の個数: 96

約数和(自身を含む): 47416320

約数和(自身を除く): 28906780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 47, 58, 70, 94, 97, 116, 140, 145, 188, 194, 203, 235, 290, 329, 388, 406, 470, 485, 580, 658, 679, 812, 940, 970, 1015, 1316, 1358, 1363, 1645, 1940, 2030, 2716, 2726, 2813, 3290, 3395, 4060, 4559, 5452, 5626, 6580, 6790, 6815, 9118, 9541, 11252, 13580, 13630, 14065, 18236, 19082, 19691, 22795, 27260, 28130, 31913, 38164, 39382, 45590, 47705, 56260, 63826, 78764, 91180, 95410, 98455, 127652, 132211, 159565, 190820, 196910, 264422, 319130, 393820, 528844, 638260, 661055, 925477, 1322110, 1850954, 2644220, 3701908, 4627385, 9254770, 18509540]

約数ペア:

[(1, 18509540), (2, 9254770), (4, 4627385), (5, 3701908), (7, 2644220), (10, 1850954), (14, 1322110), (20, 925477), (28, 661055), (29, 638260), (35, 528844), (47, 393820), (58, 319130), (70, 264422), (94, 196910), (97, 190820), (116, 159565), (140, 132211), (145, 127652), (188, 98455), (194, 95410), (203, 91180), (235, 78764), (290, 63826), (329, 56260), (388, 47705), (406, 45590), (470, 39382), (485, 38164), (580, 31913), (658, 28130), (679, 27260), (812, 22795), (940, 19691), (970, 19082), (1015, 18236), (1316, 14065), (1358, 13630), (1363, 13580), (1645, 11252), (1940, 9541), (2030, 9118), (2716, 6815), (2726, 6790), (2813, 6580), (3290, 5626), (3395, 5452), (4060, 4559)]