31644920

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5039}}^1$

素因数の和:5207

約数の個数: 32

約数和(自身を含む): 71668800

約数和(自身を除く): 40023880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 5039, 6280, 10078, 20156, 25195, 40312, 50390, 100780, 201560, 791123, 1582246, 3164492, 3955615, 6328984, 7911230, 15822460, 31644920]

約数ペア:

[(1, 31644920), (2, 15822460), (4, 7911230), (5, 6328984), (8, 3955615), (10, 3164492), (20, 1582246), (40, 791123), (157, 201560), (314, 100780), (628, 50390), (785, 40312), (1256, 25195), (1570, 20156), (3140, 10078), (5039, 6280)]