20185438420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{601}}^1\times {\mathrm{1889}}^1$

素因数の和:2633

約数の個数: 96

約数和(自身を含む): 48933642240

約数和(自身を除く): 28748203820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 601, 635, 889, 1202, 1270, 1778, 1889, 2404, 2540, 3005, 3556, 3778, 4207, 4445, 6010, 7556, 8414, 8890, 9445, 12020, 13223, 16828, 17780, 18890, 21035, 26446, 37780, 42070, 52892, 66115, 76327, 84140, 132230, 152654, 239903, 264460, 305308, 381635, 479806, 534289, 763270, 959612, 1068578, 1135289, 1199515, 1526540, 1679321, 2137156, 2270578, 2399030, 2671445, 3358642, 4541156, 4798060, 5342890, 5676445, 6717284, 7947023, 8396605, 10685780, 11352890, 15894046, 16793210, 22705780, 31788092, 33586420, 39735115, 79470230, 144181703, 158940460, 288363406, 576726812, 720908515, 1009271921, 1441817030, 2018543842, 2883634060, 4037087684, 5046359605, 10092719210, 20185438420]

約数ペア:

[(1, 20185438420), (2, 10092719210), (4, 5046359605), (5, 4037087684), (7, 2883634060), (10, 2018543842), (14, 1441817030), (20, 1009271921), (28, 720908515), (35, 576726812), (70, 288363406), (127, 158940460), (140, 144181703), (254, 79470230), (508, 39735115), (601, 33586420), (635, 31788092), (889, 22705780), (1202, 16793210), (1270, 15894046), (1778, 11352890), (1889, 10685780), (2404, 8396605), (2540, 7947023), (3005, 6717284), (3556, 5676445), (3778, 5342890), (4207, 4798060), (4445, 4541156), (6010, 3358642), (7556, 2671445), (8414, 2399030), (8890, 2270578), (9445, 2137156), (12020, 1679321), (13223, 1526540), (16828, 1199515), (17780, 1135289), (18890, 1068578), (21035, 959612), (26446, 763270), (37780, 534289), (42070, 479806), (52892, 381635), (66115, 305308), (76327, 264460), (84140, 239903), (132230, 152654)]