2019988400

素因数分解:

$2^4\times 5^2\times {\mathrm{821}}^1\times {\mathrm{6151}}^1$

素因数の和:6990

約数の個数: 60

約数和(自身を含む): 4859723184

約数和(自身を除く): 2839734784

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 821, 1642, 3284, 4105, 6151, 6568, 8210, 12302, 13136, 16420, 20525, 24604, 30755, 32840, 41050, 49208, 61510, 65680, 82100, 98416, 123020, 153775, 164200, 246040, 307550, 328400, 492080, 615100, 1230200, 2460400, 5049971, 10099942, 20199884, 25249855, 40399768, 50499710, 80799536, 100999420, 126249275, 201998840, 252498550, 403997680, 504997100, 1009994200, 2019988400]

約数ペア:

[(1, 2019988400), (2, 1009994200), (4, 504997100), (5, 403997680), (8, 252498550), (10, 201998840), (16, 126249275), (20, 100999420), (25, 80799536), (40, 50499710), (50, 40399768), (80, 25249855), (100, 20199884), (200, 10099942), (400, 5049971), (821, 2460400), (1642, 1230200), (3284, 615100), (4105, 492080), (6151, 328400), (6568, 307550), (8210, 246040), (12302, 164200), (13136, 153775), (16420, 123020), (20525, 98416), (24604, 82100), (30755, 65680), (32840, 61510), (41050, 49208)]