19809340

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{10211}}^1$

素因数の和:10317

約数の個数: 24

約数和(自身を含む): 42032592

約数和(自身を除く): 22223252

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 10211, 20422, 40844, 51055, 102110, 204220, 990467, 1980934, 3961868, 4952335, 9904670, 19809340]

約数ペア:

[(1, 19809340), (2, 9904670), (4, 4952335), (5, 3961868), (10, 1980934), (20, 990467), (97, 204220), (194, 102110), (388, 51055), (485, 40844), (970, 20422), (1940, 10211)]