22215280

素因数分解:

$2^4\times 5^1\times {\mathrm{277691}}^1$

素因数の和:277704

約数の個数: 20

約数和(自身を含む): 51650712

約数和(自身を除く): 29435432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 277691, 555382, 1110764, 1388455, 2221528, 2776910, 4443056, 5553820, 11107640, 22215280]

約数ペア:

[(1, 22215280), (2, 11107640), (4, 5553820), (5, 4443056), (8, 2776910), (10, 2221528), (16, 1388455), (20, 1110764), (40, 555382), (80, 277691)]