20638290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3457}}^1$

素因数の和:3666

約数の個数: 32

約数和(自身を含む): 49795200

約数和(自身を除く): 29156910

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 199, 398, 597, 995, 1194, 1990, 2985, 3457, 5970, 6914, 10371, 17285, 20742, 34570, 51855, 103710, 687943, 1375886, 2063829, 3439715, 4127658, 6879430, 10319145, 20638290]

約数ペア:

[(1, 20638290), (2, 10319145), (3, 6879430), (5, 4127658), (6, 3439715), (10, 2063829), (15, 1375886), (30, 687943), (199, 103710), (398, 51855), (597, 34570), (995, 20742), (1194, 17285), (1990, 10371), (2985, 6914), (3457, 5970)]