778894185

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{647}}^1\times {\mathrm{4721}}^1$

素因数の和:5393

約数の個数: 32

約数和(自身を含む): 1321857792

約数和(自身を除く): 542963607

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 647, 1941, 3235, 4721, 9705, 10999, 14163, 23605, 32997, 54995, 70815, 80257, 164985, 240771, 401285, 1203855, 3054487, 9163461, 15272435, 45817305, 51926279, 155778837, 259631395, 778894185]

約数ペア:

[(1, 778894185), (3, 259631395), (5, 155778837), (15, 51926279), (17, 45817305), (51, 15272435), (85, 9163461), (255, 3054487), (647, 1203855), (1941, 401285), (3235, 240771), (4721, 164985), (9705, 80257), (10999, 70815), (14163, 54995), (23605, 32997)]