85706840

素因数分解:

$2^3\times 5^1\times {\mathrm{1439}}^1\times {\mathrm{1489}}^1$

素因数の和:2939

約数の個数: 32

約数和(自身を含む): 193104000

約数和(自身を除く): 107397160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1439, 1489, 2878, 2978, 5756, 5956, 7195, 7445, 11512, 11912, 14390, 14890, 28780, 29780, 57560, 59560, 2142671, 4285342, 8570684, 10713355, 17141368, 21426710, 42853420, 85706840]

約数ペア:

[(1, 85706840), (2, 42853420), (4, 21426710), (5, 17141368), (8, 10713355), (10, 8570684), (20, 4285342), (40, 2142671), (1439, 59560), (1489, 57560), (2878, 29780), (2978, 28780), (5756, 14890), (5956, 14390), (7195, 11912), (7445, 11512)]