20481160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{193}}^1\times {\mathrm{379}}^1$

素因数の和:590

約数の個数: 64

約数和(自身を含む): 53078400

約数和(自身を除く): 32597240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 193, 280, 379, 386, 758, 772, 965, 1351, 1516, 1544, 1895, 1930, 2653, 2702, 3032, 3790, 3860, 5306, 5404, 6755, 7580, 7720, 10612, 10808, 13265, 13510, 15160, 21224, 26530, 27020, 53060, 54040, 73147, 106120, 146294, 292588, 365735, 512029, 585176, 731470, 1024058, 1462940, 2048116, 2560145, 2925880, 4096232, 5120290, 10240580, 20481160]

約数ペア:

[(1, 20481160), (2, 10240580), (4, 5120290), (5, 4096232), (7, 2925880), (8, 2560145), (10, 2048116), (14, 1462940), (20, 1024058), (28, 731470), (35, 585176), (40, 512029), (56, 365735), (70, 292588), (140, 146294), (193, 106120), (280, 73147), (379, 54040), (386, 53060), (758, 27020), (772, 26530), (965, 21224), (1351, 15160), (1516, 13510), (1544, 13265), (1895, 10808), (1930, 10612), (2653, 7720), (2702, 7580), (3032, 6755), (3790, 5404), (3860, 5306)]