19300180

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{2239}}^1$

素因数の和:2679

約数の個数: 24

約数和(自身を含む): 40642560

約数和(自身を除く): 21342380

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 2239, 4310, 4478, 8620, 8956, 11195, 22390, 44780, 965009, 1930018, 3860036, 4825045, 9650090, 19300180]

約数ペア:

[(1, 19300180), (2, 9650090), (4, 4825045), (5, 3860036), (10, 1930018), (20, 965009), (431, 44780), (862, 22390), (1724, 11195), (2155, 8956), (2239, 8620), (4310, 4478)]