9721780

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1553}}^1$

素因数の和:1875

約数の個数: 24

約数和(自身を含む): 20494152

約数和(自身を除く): 10772372

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1553, 1565, 3106, 3130, 6212, 6260, 7765, 15530, 31060, 486089, 972178, 1944356, 2430445, 4860890, 9721780]

約数ペア:

[(1, 9721780), (2, 4860890), (4, 2430445), (5, 1944356), (10, 972178), (20, 486089), (313, 31060), (626, 15530), (1252, 7765), (1553, 6260), (1565, 6212), (3106, 3130)]