12427220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47797}}^1$

素因数の和:47819

約数の個数: 24

約数和(自身を含む): 28105224

約数和(自身を除く): 15678004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 47797, 95594, 191188, 238985, 477970, 621361, 955940, 1242722, 2485444, 3106805, 6213610, 12427220]

約数ペア:

[(1, 12427220), (2, 6213610), (4, 3106805), (5, 2485444), (10, 1242722), (13, 955940), (20, 621361), (26, 477970), (52, 238985), (65, 191188), (130, 95594), (260, 47797)]