19928860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{503}}^1$

素因数の和:802

約数の個数: 48

約数和(自身を含む): 48093696

約数和(自身を除く): 28164836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 283, 503, 566, 1006, 1132, 1415, 1981, 2012, 2515, 2830, 3521, 3962, 5030, 5660, 7042, 7924, 9905, 10060, 14084, 17605, 19810, 35210, 39620, 70420, 142349, 284698, 569396, 711745, 996443, 1423490, 1992886, 2846980, 3985772, 4982215, 9964430, 19928860]

約数ペア:

[(1, 19928860), (2, 9964430), (4, 4982215), (5, 3985772), (7, 2846980), (10, 1992886), (14, 1423490), (20, 996443), (28, 711745), (35, 569396), (70, 284698), (140, 142349), (283, 70420), (503, 39620), (566, 35210), (1006, 19810), (1132, 17605), (1415, 14084), (1981, 10060), (2012, 9905), (2515, 7924), (2830, 7042), (3521, 5660), (3962, 5030)]