66655940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256369}}^1$

素因数の和:256391

約数の個数: 24

約数和(自身を含む): 150745560

約数和(自身を除く): 84089620

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 256369, 512738, 1025476, 1281845, 2563690, 3332797, 5127380, 6665594, 13331188, 16663985, 33327970, 66655940]

約数ペア:

[(1, 66655940), (2, 33327970), (4, 16663985), (5, 13331188), (10, 6665594), (13, 5127380), (20, 3332797), (26, 2563690), (52, 1281845), (65, 1025476), (130, 512738), (260, 256369)]