1977820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{7607}}^1$

素因数の和:7629

約数の個数: 24

約数和(自身を含む): 4473504

約数和(自身を除く): 2495684

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 7607, 15214, 30428, 38035, 76070, 98891, 152140, 197782, 395564, 494455, 988910, 1977820]

約数ペア:

[(1, 1977820), (2, 988910), (4, 494455), (5, 395564), (10, 197782), (13, 152140), (20, 98891), (26, 76070), (52, 38035), (65, 30428), (130, 15214), (260, 7607)]