20829080

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{30631}}^1$

素因数の和:30659

約数の個数: 32

約数和(自身を含む): 49623840

約数和(自身を除く): 28794760

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 30631, 61262, 122524, 153155, 245048, 306310, 520727, 612620, 1041454, 1225240, 2082908, 2603635, 4165816, 5207270, 10414540, 20829080]

約数ペア:

[(1, 20829080), (2, 10414540), (4, 5207270), (5, 4165816), (8, 2603635), (10, 2082908), (17, 1225240), (20, 1041454), (34, 612620), (40, 520727), (68, 306310), (85, 245048), (136, 153155), (170, 122524), (340, 61262), (680, 30631)]