20165521490

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{547}}^1\times {\mathrm{127123}}^1$

素因数の和:127706

約数の個数: 32

約数和(自身を含む): 37618534080

約数和(自身を除く): 17453012590

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 547, 1094, 2735, 5470, 15863, 31726, 79315, 127123, 158630, 254246, 635615, 1271230, 3686567, 7373134, 18432835, 36865670, 69536281, 139072562, 347681405, 695362810, 2016552149, 4033104298, 10082760745, 20165521490]

約数ペア:

[(1, 20165521490), (2, 10082760745), (5, 4033104298), (10, 2016552149), (29, 695362810), (58, 347681405), (145, 139072562), (290, 69536281), (547, 36865670), (1094, 18432835), (2735, 7373134), (5470, 3686567), (15863, 1271230), (31726, 635615), (79315, 254246), (127123, 158630)]