1800280

素因数分解:

$2^3\times 5^1\times {\mathrm{45007}}^1$

素因数の和:45018

約数の個数: 16

約数和(自身を含む): 4050720

約数和(自身を除く): 2250440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 45007, 90014, 180028, 225035, 360056, 450070, 900140, 1800280]

約数ペア:

[(1, 1800280), (2, 900140), (4, 450070), (5, 360056), (8, 225035), (10, 180028), (20, 90014), (40, 45007)]