25431820

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3203}}^1$

素因数の和:3609

約数の個数: 24

約数和(自身を含む): 53558064

約数和(自身を除く): 28126244

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3203, 3970, 6406, 7940, 12812, 16015, 32030, 64060, 1271591, 2543182, 5086364, 6357955, 12715910, 25431820]

約数ペア:

[(1, 25431820), (2, 12715910), (4, 6357955), (5, 5086364), (10, 2543182), (20, 1271591), (397, 64060), (794, 32030), (1588, 16015), (1985, 12812), (3203, 7940), (3970, 6406)]