20730472

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8609}}^1$

素因数の和:8665

約数の個数: 32

約数和(自身を含む): 45460800

約数和(自身を除く): 24730328

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8609, 17218, 34436, 60263, 68872, 120526, 241052, 370187, 482104, 740374, 1480748, 2591309, 2961496, 5182618, 10365236, 20730472]

約数ペア:

[(1, 20730472), (2, 10365236), (4, 5182618), (7, 2961496), (8, 2591309), (14, 1480748), (28, 740374), (43, 482104), (56, 370187), (86, 241052), (172, 120526), (301, 68872), (344, 60263), (602, 34436), (1204, 17218), (2408, 8609)]