20920620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49811}}^1$

素因数の和:49830

約数の個数: 48

約数和(自身を含む): 66947328

約数和(自身を除く): 46026708

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, 49811, 99622, 149433, 199244, 249055, 298866, 348677, 498110, 597732, 697354, 747165, 996220, 1046031, 1394708, 1494330, 1743385, 2092062, 2988660, 3486770, 4184124, 5230155, 6973540, 10460310, 20920620]

約数ペア:

[(1, 20920620), (2, 10460310), (3, 6973540), (4, 5230155), (5, 4184124), (6, 3486770), (7, 2988660), (10, 2092062), (12, 1743385), (14, 1494330), (15, 1394708), (20, 1046031), (21, 996220), (28, 747165), (30, 697354), (35, 597732), (42, 498110), (60, 348677), (70, 298866), (84, 249055), (105, 199244), (140, 149433), (210, 99622), (420, 49811)]