19570210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1999}}^1$

素因数の和:2106

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 19309790

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 1999, 3998, 4895, 9790, 9995, 19990, 21989, 43978, 109945, 177911, 219890, 355822, 889555, 1779110, 1957021, 3914042, 9785105, 19570210]

約数ペア:

[(1, 19570210), (2, 9785105), (5, 3914042), (10, 1957021), (11, 1779110), (22, 889555), (55, 355822), (89, 219890), (110, 177911), (178, 109945), (445, 43978), (890, 21989), (979, 19990), (1958, 9995), (1999, 9790), (3998, 4895)]