68215940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{262369}}^1$

素因数の和:262391

約数の個数: 24

約数和(自身を含む): 154273560

約数和(自身を除く): 86057620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 262369, 524738, 1049476, 1311845, 2623690, 3410797, 5247380, 6821594, 13643188, 17053985, 34107970, 68215940]

約数ペア:

[(1, 68215940), (2, 34107970), (4, 17053985), (5, 13643188), (10, 6821594), (13, 5247380), (20, 3410797), (26, 2623690), (52, 1311845), (65, 1049476), (130, 524738), (260, 262369)]