18753320

素因数分解:

$2^3\times 5^1\times {\mathrm{631}}^1\times {\mathrm{743}}^1$

素因数の和:1385

約数の個数: 32

約数和(自身を含む): 42318720

約数和(自身を除く): 23565400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 631, 743, 1262, 1486, 2524, 2972, 3155, 3715, 5048, 5944, 6310, 7430, 12620, 14860, 25240, 29720, 468833, 937666, 1875332, 2344165, 3750664, 4688330, 9376660, 18753320]

約数ペア:

[(1, 18753320), (2, 9376660), (4, 4688330), (5, 3750664), (8, 2344165), (10, 1875332), (20, 937666), (40, 468833), (631, 29720), (743, 25240), (1262, 14860), (1486, 12620), (2524, 7430), (2972, 6310), (3155, 5944), (3715, 5048)]