219820010

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{56509}}^1$

素因数の和:56905

約数の個数: 16

約数和(自身を含む): 396700200

約数和(自身を除く): 176880190

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 56509, 113018, 282545, 565090, 21982001, 43964002, 109910005, 219820010]

約数ペア:

[(1, 219820010), (2, 109910005), (5, 43964002), (10, 21982001), (389, 565090), (778, 282545), (1945, 113018), (3890, 56509)]