90047660

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{17519}}^1$

素因数の和:17785

約数の個数: 24

約数和(自身を含む): 189846720

約数和(自身を除く): 99799060

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 17519, 35038, 70076, 87595, 175190, 350380, 4502383, 9004766, 18009532, 22511915, 45023830, 90047660]

約数ペア:

[(1, 90047660), (2, 45023830), (4, 22511915), (5, 18009532), (10, 9004766), (20, 4502383), (257, 350380), (514, 175190), (1028, 87595), (1285, 70076), (2570, 35038), (5140, 17519)]