209085080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{168617}}^1$

素因数の和:168659

約数の個数: 32

約数和(自身を含む): 485619840

約数和(自身を除く): 276534760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 168617, 337234, 674468, 843085, 1348936, 1686170, 3372340, 5227127, 6744680, 10454254, 20908508, 26135635, 41817016, 52271270, 104542540, 209085080]

約数ペア:

[(1, 209085080), (2, 104542540), (4, 52271270), (5, 41817016), (8, 26135635), (10, 20908508), (20, 10454254), (31, 6744680), (40, 5227127), (62, 3372340), (124, 1686170), (155, 1348936), (248, 843085), (310, 674468), (620, 337234), (1240, 168617)]