661580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1741}}^1$

素因数の和:1769

約数の個数: 24

約数和(自身を含む): 1463280

約数和(自身を除く): 801700

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 1741, 3482, 6964, 8705, 17410, 33079, 34820, 66158, 132316, 165395, 330790, 661580]

約数ペア:

[(1, 661580), (2, 330790), (4, 165395), (5, 132316), (10, 66158), (19, 34820), (20, 33079), (38, 17410), (76, 8705), (95, 6964), (190, 3482), (380, 1741)]