2020111312

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1\times {\mathrm{541}}^1$

素因数の和:812

約数の個数: 80

約数和(自身を含む): 4209909120

約数和(自身を除く): 2189797808

約数列:

[1, 2, 4, 8, 16, 19, 38, 71, 76, 142, 152, 173, 284, 304, 346, 541, 568, 692, 1082, 1136, 1349, 1384, 2164, 2698, 2768, 3287, 4328, 5396, 6574, 8656, 10279, 10792, 12283, 13148, 20558, 21584, 24566, 26296, 38411, 41116, 49132, 52592, 76822, 82232, 93593, 98264, 153644, 164464, 187186, 196528, 233377, 307288, 374372, 466754, 614576, 729809, 748744, 933508, 1459618, 1497488, 1778267, 1867016, 2919236, 3556534, 3734032, 5838472, 6645103, 7113068, 11676944, 13290206, 14226136, 26580412, 28452272, 53160824, 106321648, 126256957, 252513914, 505027828, 1010055656, 2020111312]

約数ペア:

[(1, 2020111312), (2, 1010055656), (4, 505027828), (8, 252513914), (16, 126256957), (19, 106321648), (38, 53160824), (71, 28452272), (76, 26580412), (142, 14226136), (152, 13290206), (173, 11676944), (284, 7113068), (304, 6645103), (346, 5838472), (541, 3734032), (568, 3556534), (692, 2919236), (1082, 1867016), (1136, 1778267), (1349, 1497488), (1384, 1459618), (2164, 933508), (2698, 748744), (2768, 729809), (3287, 614576), (4328, 466754), (5396, 374372), (6574, 307288), (8656, 233377), (10279, 196528), (10792, 187186), (12283, 164464), (13148, 153644), (20558, 98264), (21584, 93593), (24566, 82232), (26296, 76822), (38411, 52592), (41116, 49132)]