12817220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{49297}}^1$

素因数の和:49319

約数の個数: 24

約数和(自身を含む): 28987224

約数和(自身を除く): 16170004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 49297, 98594, 197188, 246485, 492970, 640861, 985940, 1281722, 2563444, 3204305, 6408610, 12817220]

約数ペア:

[(1, 12817220), (2, 6408610), (4, 3204305), (5, 2563444), (10, 1281722), (13, 985940), (20, 640861), (26, 492970), (52, 246485), (65, 197188), (130, 98594), (260, 49297)]