20478630

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1669}}^1$

素因数の和:2088

約数の個数: 32

約数和(自身を含む): 49298400

約数和(自身を除く): 28819770

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 409, 818, 1227, 1669, 2045, 2454, 3338, 4090, 5007, 6135, 8345, 10014, 12270, 16690, 25035, 50070, 682621, 1365242, 2047863, 3413105, 4095726, 6826210, 10239315, 20478630]

約数ペア:

[(1, 20478630), (2, 10239315), (3, 6826210), (5, 4095726), (6, 3413105), (10, 2047863), (15, 1365242), (30, 682621), (409, 50070), (818, 25035), (1227, 16690), (1669, 12270), (2045, 10014), (2454, 8345), (3338, 6135), (4090, 5007)]