31005320

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{1933}}^1$

素因数の和:2345

約数の個数: 32

約数和(自身を含む): 69972120

約数和(自身を除く): 38966800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 1933, 2005, 3208, 3866, 4010, 7732, 8020, 9665, 15464, 16040, 19330, 38660, 77320, 775133, 1550266, 3100532, 3875665, 6201064, 7751330, 15502660, 31005320]

約数ペア:

[(1, 31005320), (2, 15502660), (4, 7751330), (5, 6201064), (8, 3875665), (10, 3100532), (20, 1550266), (40, 775133), (401, 77320), (802, 38660), (1604, 19330), (1933, 16040), (2005, 15464), (3208, 9665), (3866, 8020), (4010, 7732)]