81508770

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{129379}}^1$

素因数の和:129399

約数の個数: 48

約数和(自身を含む): 242199360

約数和(自身を除く): 160690590

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 129379, 258758, 388137, 646895, 776274, 905653, 1164411, 1293790, 1811306, 1940685, 2328822, 2716959, 3881370, 4528265, 5433918, 5822055, 8150877, 9056530, 11644110, 13584795, 16301754, 27169590, 40754385, 81508770]

約数ペア:

[(1, 81508770), (2, 40754385), (3, 27169590), (5, 16301754), (6, 13584795), (7, 11644110), (9, 9056530), (10, 8150877), (14, 5822055), (15, 5433918), (18, 4528265), (21, 3881370), (30, 2716959), (35, 2328822), (42, 1940685), (45, 1811306), (63, 1293790), (70, 1164411), (90, 905653), (105, 776274), (126, 646895), (210, 388137), (315, 258758), (630, 129379)]