402000410

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{820409}}^1$

素因数の和:820430

約数の個数: 24

約数和(自身を含む): 841740660

約数和(自身を除く): 439740250

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 820409, 1640818, 4102045, 5742863, 8204090, 11485726, 28714315, 40200041, 57428630, 80400082, 201000205, 402000410]

約数ペア:

[(1, 402000410), (2, 201000205), (5, 80400082), (7, 57428630), (10, 40200041), (14, 28714315), (35, 11485726), (49, 8204090), (70, 5742863), (98, 4102045), (245, 1640818), (490, 820409)]