20199942940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2281}}^1\times {\mathrm{9421}}^1$

素因数の和:11758

約数の個数: 48

約数和(自身を含む): 43346024064

約数和(自身を除く): 23146081124

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 2281, 4562, 9124, 9421, 11405, 18842, 22810, 37684, 45620, 47105, 94210, 107207, 188420, 214414, 428828, 442787, 536035, 885574, 1072070, 1771148, 2144140, 2213935, 4427870, 8855740, 21489301, 42978602, 85957204, 107446505, 214893010, 429786020, 1009997147, 2019994294, 4039988588, 5049985735, 10099971470, 20199942940]

約数ペア:

[(1, 20199942940), (2, 10099971470), (4, 5049985735), (5, 4039988588), (10, 2019994294), (20, 1009997147), (47, 429786020), (94, 214893010), (188, 107446505), (235, 85957204), (470, 42978602), (940, 21489301), (2281, 8855740), (4562, 4427870), (9124, 2213935), (9421, 2144140), (11405, 1771148), (18842, 1072070), (22810, 885574), (37684, 536035), (45620, 442787), (47105, 428828), (94210, 214414), (107207, 188420)]