8721356

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:230

約数の個数: 48

約数和(自身を含む): 18289152

約数和(自身を除く): 9567796

約数列:

[1, 2, 4, 7, 14, 28, 41, 71, 82, 107, 142, 164, 214, 284, 287, 428, 497, 574, 749, 994, 1148, 1498, 1988, 2911, 2996, 4387, 5822, 7597, 8774, 11644, 15194, 17548, 20377, 30388, 30709, 40754, 53179, 61418, 81508, 106358, 122836, 212716, 311477, 622954, 1245908, 2180339, 4360678, 8721356]

約数ペア:

[(1, 8721356), (2, 4360678), (4, 2180339), (7, 1245908), (14, 622954), (28, 311477), (41, 212716), (71, 122836), (82, 106358), (107, 81508), (142, 61418), (164, 53179), (214, 40754), (284, 30709), (287, 30388), (428, 20377), (497, 17548), (574, 15194), (749, 11644), (994, 8774), (1148, 7597), (1498, 5822), (1988, 4387), (2911, 2996)]