2021858905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1\times {\mathrm{199}}^1$

素因数の和:406

約数の個数: 64

約数和(自身を含む): 2820096000

約数和(自身を除く): 798237095

約数列:

[1, 5, 11, 31, 55, 59, 101, 155, 199, 295, 341, 505, 649, 995, 1111, 1705, 1829, 2189, 3131, 3245, 5555, 5959, 6169, 9145, 10945, 11741, 15655, 20099, 20119, 29795, 30845, 34441, 58705, 65549, 67859, 100495, 100595, 129151, 172205, 184729, 221089, 327745, 339295, 363971, 623069, 645755, 923645, 1105445, 1185841, 1819855, 2032019, 3115345, 4003681, 5929205, 6853759, 10160095, 13044251, 20018405, 34268795, 36761071, 65221255, 183805355, 404371781, 2021858905]

約数ペア:

[(1, 2021858905), (5, 404371781), (11, 183805355), (31, 65221255), (55, 36761071), (59, 34268795), (101, 20018405), (155, 13044251), (199, 10160095), (295, 6853759), (341, 5929205), (505, 4003681), (649, 3115345), (995, 2032019), (1111, 1819855), (1705, 1185841), (1829, 1105445), (2189, 923645), (3131, 645755), (3245, 623069), (5555, 363971), (5959, 339295), (6169, 327745), (9145, 221089), (10945, 184729), (11741, 172205), (15655, 129151), (20099, 100595), (20119, 100495), (29795, 67859), (30845, 65549), (34441, 58705)]