208248045

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{1787}}^1$

素因数の和:2269

約数の個数: 32

約数和(自身を含む): 353766528

約数和(自身を除く): 145518483

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 457, 1371, 1787, 2285, 5361, 6855, 7769, 8935, 23307, 26805, 30379, 38845, 91137, 116535, 151895, 455685, 816659, 2449977, 4083295, 12249885, 13883203, 41649609, 69416015, 208248045]

約数ペア:

[(1, 208248045), (3, 69416015), (5, 41649609), (15, 13883203), (17, 12249885), (51, 4083295), (85, 2449977), (255, 816659), (457, 455685), (1371, 151895), (1787, 116535), (2285, 91137), (5361, 38845), (6855, 30379), (7769, 26805), (8935, 23307)]