1729039280

素因数分解:

$2^4\times 5^1\times {\mathrm{21612991}}^1$

素因数の和:21613004

約数の個数: 20

約数和(自身を含む): 4020016512

約数和(自身を除く): 2290977232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 21612991, 43225982, 86451964, 108064955, 172903928, 216129910, 345807856, 432259820, 864519640, 1729039280]

約数ペア:

[(1, 1729039280), (2, 864519640), (4, 432259820), (5, 345807856), (8, 216129910), (10, 172903928), (16, 108064955), (20, 86451964), (40, 43225982), (80, 21612991)]