18693940

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{40639}}^1$

素因数の和:40671

約数の個数: 24

約数和(自身を含む): 40965120

約数和(自身を除く): 22271180

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 40639, 81278, 162556, 203195, 406390, 812780, 934697, 1869394, 3738788, 4673485, 9346970, 18693940]

約数ペア:

[(1, 18693940), (2, 9346970), (4, 4673485), (5, 3738788), (10, 1869394), (20, 934697), (23, 812780), (46, 406390), (92, 203195), (115, 162556), (230, 81278), (460, 40639)]