11520140

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4397}}^1$

素因数の和:4537

約数の個数: 24

約数和(自身を含む): 24382512

約数和(自身を除く): 12862372

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 4397, 8794, 17588, 21985, 43970, 87940, 576007, 1152014, 2304028, 2880035, 5760070, 11520140]

約数ペア:

[(1, 11520140), (2, 5760070), (4, 2880035), (5, 2304028), (10, 1152014), (20, 576007), (131, 87940), (262, 43970), (524, 21985), (655, 17588), (1310, 8794), (2620, 4397)]