18696280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8819}}^1$

素因数の和:8883

約数の個数: 32

約数和(自身を含む): 42865200

約数和(自身を除く): 24168920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 8819, 17638, 35276, 44095, 70552, 88190, 176380, 352760, 467407, 934814, 1869628, 2337035, 3739256, 4674070, 9348140, 18696280]

約数ペア:

[(1, 18696280), (2, 9348140), (4, 4674070), (5, 3739256), (8, 2337035), (10, 1869628), (20, 934814), (40, 467407), (53, 352760), (106, 176380), (212, 88190), (265, 70552), (424, 44095), (530, 35276), (1060, 17638), (2120, 8819)]