2020144240

素因数分解:

$2^4\times 5^1\times {\mathrm{2473}}^1\times {\mathrm{10211}}^1$

素因数の和:12697

約数の個数: 40

約数和(自身を含む): 4699194768

約数和(自身を除く): 2679050528

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2473, 4946, 9892, 10211, 12365, 19784, 20422, 24730, 39568, 40844, 49460, 51055, 81688, 98920, 102110, 163376, 197840, 204220, 408440, 816880, 25251803, 50503606, 101007212, 126259015, 202014424, 252518030, 404028848, 505036060, 1010072120, 2020144240]

約数ペア:

[(1, 2020144240), (2, 1010072120), (4, 505036060), (5, 404028848), (8, 252518030), (10, 202014424), (16, 126259015), (20, 101007212), (40, 50503606), (80, 25251803), (2473, 816880), (4946, 408440), (9892, 204220), (10211, 197840), (12365, 163376), (19784, 102110), (20422, 98920), (24730, 81688), (39568, 51055), (40844, 49460)]