678743590

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1385191}}^1$

素因数の和:1385212

約数の個数: 24

約数和(自身を含む): 1421206992

約数和(自身を除く): 742463402

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1385191, 2770382, 6925955, 9696337, 13851910, 19392674, 48481685, 67874359, 96963370, 135748718, 339371795, 678743590]

約数ペア:

[(1, 678743590), (2, 339371795), (5, 135748718), (7, 96963370), (10, 67874359), (14, 48481685), (35, 19392674), (49, 13851910), (70, 9696337), (98, 6925955), (245, 2770382), (490, 1385191)]