20654340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49177}}^1$

素因数の和:49196

約数の個数: 48

約数和(自身を含む): 66095232

約数和(自身を除く): 45440892

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, 49177, 98354, 147531, 196708, 245885, 295062, 344239, 491770, 590124, 688478, 737655, 983540, 1032717, 1376956, 1475310, 1721195, 2065434, 2950620, 3442390, 4130868, 5163585, 6884780, 10327170, 20654340]

約数ペア:

[(1, 20654340), (2, 10327170), (3, 6884780), (4, 5163585), (5, 4130868), (6, 3442390), (7, 2950620), (10, 2065434), (12, 1721195), (14, 1475310), (15, 1376956), (20, 1032717), (21, 983540), (28, 737655), (30, 688478), (35, 590124), (42, 491770), (60, 344239), (70, 295062), (84, 245885), (105, 196708), (140, 147531), (210, 98354), (420, 49177)]