278300720

素因数分解:

$2^4\times 5^1\times {\mathrm{3478759}}^1$

素因数の和:3478772

約数の個数: 20

約数和(自身を含む): 647049360

約数和(自身を除く): 368748640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3478759, 6957518, 13915036, 17393795, 27830072, 34787590, 55660144, 69575180, 139150360, 278300720]

約数ペア:

[(1, 278300720), (2, 139150360), (4, 69575180), (5, 55660144), (8, 34787590), (10, 27830072), (16, 17393795), (20, 13915036), (40, 6957518), (80, 3478759)]