20367780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4297}}^1$

素因数の和:4388

約数の個数: 48

約数和(自身を含む): 57765120

約数和(自身を除く): 37397340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4297, 4740, 8594, 12891, 17188, 21485, 25782, 42970, 51564, 64455, 85940, 128910, 257820, 339463, 678926, 1018389, 1357852, 1697315, 2036778, 3394630, 4073556, 5091945, 6789260, 10183890, 20367780]

約数ペア:

[(1, 20367780), (2, 10183890), (3, 6789260), (4, 5091945), (5, 4073556), (6, 3394630), (10, 2036778), (12, 1697315), (15, 1357852), (20, 1018389), (30, 678926), (60, 339463), (79, 257820), (158, 128910), (237, 85940), (316, 64455), (395, 51564), (474, 42970), (790, 25782), (948, 21485), (1185, 17188), (1580, 12891), (2370, 8594), (4297, 4740)]