20199985380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{3869729}}^1$

素因数の和:3869773

約数の個数: 72

約数和(自身を含む): 63386177400

約数和(自身を除く): 43186192020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 3869729, 7739458, 11609187, 15478916, 19348645, 23218374, 34827561, 38697290, 46436748, 58045935, 69655122, 77394580, 112222141, 116091870, 139310244, 174137805, 224444282, 232183740, 336666423, 348275610, 448888564, 561110705, 673332846, 696551220, 1009999269, 1122221410, 1346665692, 1683332115, 2019998538, 2244442820, 3366664230, 4039997076, 5049996345, 6733328460, 10099992690, 20199985380]

約数ペア:

[(1, 20199985380), (2, 10099992690), (3, 6733328460), (4, 5049996345), (5, 4039997076), (6, 3366664230), (9, 2244442820), (10, 2019998538), (12, 1683332115), (15, 1346665692), (18, 1122221410), (20, 1009999269), (29, 696551220), (30, 673332846), (36, 561110705), (45, 448888564), (58, 348275610), (60, 336666423), (87, 232183740), (90, 224444282), (116, 174137805), (145, 139310244), (174, 116091870), (180, 112222141), (261, 77394580), (290, 69655122), (348, 58045935), (435, 46436748), (522, 38697290), (580, 34827561), (870, 23218374), (1044, 19348645), (1305, 15478916), (1740, 11609187), (2610, 7739458), (5220, 3869729)]