199967820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{256369}}^1$

素因数の和:256394

約数の個数: 48

約数和(自身を含む): 602982240

約数和(自身を除く): 403014420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 256369, 512738, 769107, 1025476, 1281845, 1538214, 2563690, 3076428, 3332797, 3845535, 5127380, 6665594, 7691070, 9998391, 13331188, 15382140, 16663985, 19996782, 33327970, 39993564, 49991955, 66655940, 99983910, 199967820]

約数ペア:

[(1, 199967820), (2, 99983910), (3, 66655940), (4, 49991955), (5, 39993564), (6, 33327970), (10, 19996782), (12, 16663985), (13, 15382140), (15, 13331188), (20, 9998391), (26, 7691070), (30, 6665594), (39, 5127380), (52, 3845535), (60, 3332797), (65, 3076428), (78, 2563690), (130, 1538214), (156, 1281845), (195, 1025476), (260, 769107), (390, 512738), (780, 256369)]