201982520

素因数分解:

$2^3\times 5^1\times {\mathrm{2003}}^1\times {\mathrm{2521}}^1$

素因数の和:4535

約数の個数: 32

約数和(自身を含む): 454867920

約数和(自身を除く): 252885400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2003, 2521, 4006, 5042, 8012, 10015, 10084, 12605, 16024, 20030, 20168, 25210, 40060, 50420, 80120, 100840, 5049563, 10099126, 20198252, 25247815, 40396504, 50495630, 100991260, 201982520]

約数ペア:

[(1, 201982520), (2, 100991260), (4, 50495630), (5, 40396504), (8, 25247815), (10, 20198252), (20, 10099126), (40, 5049563), (2003, 100840), (2521, 80120), (4006, 50420), (5042, 40060), (8012, 25210), (10015, 20168), (10084, 20030), (12605, 16024)]