80170180

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{439}}^1$

素因数の和:868

約数の個数: 48

約数和(自身を含む): 176520960

約数和(自身を除く): 96350780

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 397, 439, 460, 794, 878, 1588, 1756, 1985, 2195, 3970, 4390, 7940, 8780, 9131, 10097, 18262, 20194, 36524, 40388, 45655, 50485, 91310, 100970, 174283, 182620, 201940, 348566, 697132, 871415, 1742830, 3485660, 4008509, 8017018, 16034036, 20042545, 40085090, 80170180]

約数ペア:

[(1, 80170180), (2, 40085090), (4, 20042545), (5, 16034036), (10, 8017018), (20, 4008509), (23, 3485660), (46, 1742830), (92, 871415), (115, 697132), (230, 348566), (397, 201940), (439, 182620), (460, 174283), (794, 100970), (878, 91310), (1588, 50485), (1756, 45655), (1985, 40388), (2195, 36524), (3970, 20194), (4390, 18262), (7940, 10097), (8780, 9131)]