280397880

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{111269}}^1$

素因数の和:111293

約数の個数: 96

約数和(自身を含む): 1041487200

約数和(自身を除く): 761089320

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 56, 60, 63, 70, 72, 84, 90, 105, 120, 126, 140, 168, 180, 210, 252, 280, 315, 360, 420, 504, 630, 840, 1260, 2520, 111269, 222538, 333807, 445076, 556345, 667614, 778883, 890152, 1001421, 1112690, 1335228, 1557766, 1669035, 2002842, 2225380, 2336649, 2670456, 3115532, 3338070, 3894415, 4005684, 4450760, 4673298, 5007105, 6231064, 6676140, 7009947, 7788830, 8011368, 9346596, 10014210, 11683245, 13352280, 14019894, 15577660, 18693192, 20028420, 23366490, 28039788, 31155320, 35049735, 40056840, 46732980, 56079576, 70099470, 93465960, 140198940, 280397880]

約数ペア:

[(1, 280397880), (2, 140198940), (3, 93465960), (4, 70099470), (5, 56079576), (6, 46732980), (7, 40056840), (8, 35049735), (9, 31155320), (10, 28039788), (12, 23366490), (14, 20028420), (15, 18693192), (18, 15577660), (20, 14019894), (21, 13352280), (24, 11683245), (28, 10014210), (30, 9346596), (35, 8011368), (36, 7788830), (40, 7009947), (42, 6676140), (45, 6231064), (56, 5007105), (60, 4673298), (63, 4450760), (70, 4005684), (72, 3894415), (84, 3338070), (90, 3115532), (105, 2670456), (120, 2336649), (126, 2225380), (140, 2002842), (168, 1669035), (180, 1557766), (210, 1335228), (252, 1112690), (280, 1001421), (315, 890152), (360, 778883), (420, 667614), (504, 556345), (630, 445076), (840, 333807), (1260, 222538), (2520, 111269)]