9865880

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1571}}^1$

素因数の和:1739

約数の個数: 32

約数和(自身を含む): 22353840

約数和(自身を除く): 12487960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 1571, 3140, 3142, 6280, 6284, 7855, 12568, 15710, 31420, 62840, 246647, 493294, 986588, 1233235, 1973176, 2466470, 4932940, 9865880]

約数ペア:

[(1, 9865880), (2, 4932940), (4, 2466470), (5, 1973176), (8, 1233235), (10, 986588), (20, 493294), (40, 246647), (157, 62840), (314, 31420), (628, 15710), (785, 12568), (1256, 7855), (1570, 6284), (1571, 6280), (3140, 3142)]