207913915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 283668480

約数和(自身を除く): 75754565

約数列:

[1, 5, 11, 37, 55, 71, 185, 355, 407, 781, 1439, 2035, 2627, 3905, 7195, 13135, 15829, 28897, 53243, 79145, 102169, 144485, 266215, 510845, 585673, 1123859, 2928365, 3780253, 5619295, 18901265, 41582783, 207913915]

約数ペア:

[(1, 207913915), (5, 41582783), (11, 18901265), (37, 5619295), (55, 3780253), (71, 2928365), (185, 1123859), (355, 585673), (407, 510845), (781, 266215), (1439, 144485), (2035, 102169), (2627, 79145), (3905, 53243), (7195, 28897), (13135, 15829)]