328438400

素因数分解:

$2^7\times 5^2\times {\mathrm{197}}^1\times {\mathrm{521}}^1$

素因数の和:742

約数の個数: 96

約数和(自身を含む): 817029180

約数和(自身を除く): 488590780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 197, 200, 320, 394, 400, 521, 640, 788, 800, 985, 1042, 1576, 1600, 1970, 2084, 2605, 3152, 3200, 3940, 4168, 4925, 5210, 6304, 7880, 8336, 9850, 10420, 12608, 13025, 15760, 16672, 19700, 20840, 25216, 26050, 31520, 33344, 39400, 41680, 52100, 63040, 66688, 78800, 83360, 102637, 104200, 126080, 157600, 166720, 205274, 208400, 315200, 333440, 410548, 416800, 513185, 630400, 821096, 833600, 1026370, 1642192, 1667200, 2052740, 2565925, 3284384, 4105480, 5131850, 6568768, 8210960, 10263700, 13137536, 16421920, 20527400, 32843840, 41054800, 65687680, 82109600, 164219200, 328438400]

約数ペア:

[(1, 328438400), (2, 164219200), (4, 82109600), (5, 65687680), (8, 41054800), (10, 32843840), (16, 20527400), (20, 16421920), (25, 13137536), (32, 10263700), (40, 8210960), (50, 6568768), (64, 5131850), (80, 4105480), (100, 3284384), (128, 2565925), (160, 2052740), (197, 1667200), (200, 1642192), (320, 1026370), (394, 833600), (400, 821096), (521, 630400), (640, 513185), (788, 416800), (800, 410548), (985, 333440), (1042, 315200), (1576, 208400), (1600, 205274), (1970, 166720), (2084, 157600), (2605, 126080), (3152, 104200), (3200, 102637), (3940, 83360), (4168, 78800), (4925, 66688), (5210, 63040), (6304, 52100), (7880, 41680), (8336, 39400), (9850, 33344), (10420, 31520), (12608, 26050), (13025, 25216), (15760, 20840), (16672, 19700)]