128697080

素因数分解:

$2^3\times 5^1\times {\mathrm{283}}^1\times {\mathrm{11369}}^1$

素因数の和:11663

約数の個数: 32

約数和(自身を含む): 290617200

約数和(自身を除く): 161920120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 283, 566, 1132, 1415, 2264, 2830, 5660, 11320, 11369, 22738, 45476, 56845, 90952, 113690, 227380, 454760, 3217427, 6434854, 12869708, 16087135, 25739416, 32174270, 64348540, 128697080]

約数ペア:

[(1, 128697080), (2, 64348540), (4, 32174270), (5, 25739416), (8, 16087135), (10, 12869708), (20, 6434854), (40, 3217427), (283, 454760), (566, 227380), (1132, 113690), (1415, 90952), (2264, 56845), (2830, 45476), (5660, 22738), (11320, 11369)]