248855720

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{57077}}^1$

素因数の和:57197

約数の個数: 32

約数和(自身を含む): 565072200

約数和(自身を除く): 316216480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 57077, 114154, 228308, 285385, 456616, 570770, 1141540, 2283080, 6221393, 12442786, 24885572, 31106965, 49771144, 62213930, 124427860, 248855720]

約数ペア:

[(1, 248855720), (2, 124427860), (4, 62213930), (5, 49771144), (8, 31106965), (10, 24885572), (20, 12442786), (40, 6221393), (109, 2283080), (218, 1141540), (436, 570770), (545, 456616), (872, 285385), (1090, 228308), (2180, 114154), (4360, 57077)]