19125540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{353}}^1$

素因数の和:418

約数の個数: 144

約数和(自身を含む): 68035968

約数和(自身を除く): 48910428

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 43, 45, 60, 63, 70, 84, 86, 90, 105, 126, 129, 140, 172, 180, 210, 215, 252, 258, 301, 315, 353, 387, 420, 430, 516, 602, 630, 645, 706, 774, 860, 903, 1059, 1204, 1260, 1290, 1412, 1505, 1548, 1765, 1806, 1935, 2118, 2471, 2580, 2709, 3010, 3177, 3530, 3612, 3870, 4236, 4515, 4942, 5295, 5418, 6020, 6354, 7060, 7413, 7740, 9030, 9884, 10590, 10836, 12355, 12708, 13545, 14826, 15179, 15885, 18060, 21180, 22239, 24710, 27090, 29652, 30358, 31770, 37065, 44478, 45537, 49420, 54180, 60716, 63540, 74130, 75895, 88956, 91074, 106253, 111195, 136611, 148260, 151790, 182148, 212506, 222390, 227685, 273222, 303580, 318759, 425012, 444780, 455370, 531265, 546444, 637518, 683055, 910740, 956277, 1062530, 1275036, 1366110, 1593795, 1912554, 2125060, 2732220, 3187590, 3825108, 4781385, 6375180, 9562770, 19125540]

約数ペア:

[(1, 19125540), (2, 9562770), (3, 6375180), (4, 4781385), (5, 3825108), (6, 3187590), (7, 2732220), (9, 2125060), (10, 1912554), (12, 1593795), (14, 1366110), (15, 1275036), (18, 1062530), (20, 956277), (21, 910740), (28, 683055), (30, 637518), (35, 546444), (36, 531265), (42, 455370), (43, 444780), (45, 425012), (60, 318759), (63, 303580), (70, 273222), (84, 227685), (86, 222390), (90, 212506), (105, 182148), (126, 151790), (129, 148260), (140, 136611), (172, 111195), (180, 106253), (210, 91074), (215, 88956), (252, 75895), (258, 74130), (301, 63540), (315, 60716), (353, 54180), (387, 49420), (420, 45537), (430, 44478), (516, 37065), (602, 31770), (630, 30358), (645, 29652), (706, 27090), (774, 24710), (860, 22239), (903, 21180), (1059, 18060), (1204, 15885), (1260, 15179), (1290, 14826), (1412, 13545), (1505, 12708), (1548, 12355), (1765, 10836), (1806, 10590), (1935, 9884), (2118, 9030), (2471, 7740), (2580, 7413), (2709, 7060), (3010, 6354), (3177, 6020), (3530, 5418), (3612, 5295), (3870, 4942), (4236, 4515)]