206899140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{492617}}^1$

素因数の和:492636

約数の個数: 48

約数和(自身を含む): 662078592

約数和(自身を除く): 455179452

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 492617, 985234, 1477851, 1970468, 2463085, 2955702, 3448319, 4926170, 5911404, 6896638, 7389255, 9852340, 10344957, 13793276, 14778510, 17241595, 20689914, 29557020, 34483190, 41379828, 51724785, 68966380, 103449570, 206899140]

約数ペア:

[(1, 206899140), (2, 103449570), (3, 68966380), (4, 51724785), (5, 41379828), (6, 34483190), (7, 29557020), (10, 20689914), (12, 17241595), (14, 14778510), (15, 13793276), (20, 10344957), (21, 9852340), (28, 7389255), (30, 6896638), (35, 5911404), (42, 4926170), (60, 3448319), (70, 2955702), (84, 2463085), (105, 1970468), (140, 1477851), (210, 985234), (420, 492617)]