19800095

素因数分解:

$5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1999}}^1$

素因数の和:2294

約数の個数: 16

約数和(自身を含む): 27264000

約数和(自身を除く): 7463905

約数列:

[1, 5, 7, 35, 283, 1415, 1981, 1999, 9905, 9995, 13993, 69965, 565717, 2828585, 3960019, 19800095]

約数ペア:

[(1, 19800095), (5, 3960019), (7, 2828585), (35, 565717), (283, 69965), (1415, 13993), (1981, 9995), (1999, 9905)]