20885340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{49727}}^1$

素因数の和:49746

約数の個数: 48

約数和(自身を含む): 66834432

約数和(自身を除く): 45949092

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, 49727, 99454, 149181, 198908, 248635, 298362, 348089, 497270, 596724, 696178, 745905, 994540, 1044267, 1392356, 1491810, 1740445, 2088534, 2983620, 3480890, 4177068, 5221335, 6961780, 10442670, 20885340]

約数ペア:

[(1, 20885340), (2, 10442670), (3, 6961780), (4, 5221335), (5, 4177068), (6, 3480890), (7, 2983620), (10, 2088534), (12, 1740445), (14, 1491810), (15, 1392356), (20, 1044267), (21, 994540), (28, 745905), (30, 696178), (35, 596724), (42, 497270), (60, 348089), (70, 298362), (84, 248635), (105, 198908), (140, 149181), (210, 99454), (420, 49727)]