128012180

素因数分解:

$2^2\times 5^1\times {\mathrm{167}}^1\times {\mathrm{38327}}^1$

素因数の和:38503

約数の個数: 24

約数和(自身を含む): 270442368

約数和(自身を除く): 142430188

約数列:

[1, 2, 4, 5, 10, 20, 167, 334, 668, 835, 1670, 3340, 38327, 76654, 153308, 191635, 383270, 766540, 6400609, 12801218, 25602436, 32003045, 64006090, 128012180]

約数ペア:

[(1, 128012180), (2, 64006090), (4, 32003045), (5, 25602436), (10, 12801218), (20, 6400609), (167, 766540), (334, 383270), (668, 191635), (835, 153308), (1670, 76654), (3340, 38327)]