209092280

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{6367}}^1$

素因数の和:7199

約数の個数: 32

約数和(自身を含む): 471104640

約数和(自身を除く): 262012360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6367, 6568, 8210, 12734, 16420, 25468, 31835, 32840, 50936, 63670, 127340, 254680, 5227307, 10454614, 20909228, 26136535, 41818456, 52273070, 104546140, 209092280]

約数ペア:

[(1, 209092280), (2, 104546140), (4, 52273070), (5, 41818456), (8, 26136535), (10, 20909228), (20, 10454614), (40, 5227307), (821, 254680), (1642, 127340), (3284, 63670), (4105, 50936), (6367, 32840), (6568, 31835), (8210, 25468), (12734, 16420)]