199420620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{474811}}^1$

素因数の和:474830

約数の個数: 48

約数和(自身を含む): 638147328

約数和(自身を除く): 438726708

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, 474811, 949622, 1424433, 1899244, 2374055, 2848866, 3323677, 4748110, 5697732, 6647354, 7122165, 9496220, 9971031, 13294708, 14244330, 16618385, 19942062, 28488660, 33236770, 39884124, 49855155, 66473540, 99710310, 199420620]

約数ペア:

[(1, 199420620), (2, 99710310), (3, 66473540), (4, 49855155), (5, 39884124), (6, 33236770), (7, 28488660), (10, 19942062), (12, 16618385), (14, 14244330), (15, 13294708), (20, 9971031), (21, 9496220), (28, 7122165), (30, 6647354), (35, 5697732), (42, 4748110), (60, 3323677), (70, 2848866), (84, 2374055), (105, 1899244), (140, 1424433), (210, 949622), (420, 474811)]