18889910

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{145307}}^1$

素因数の和:145327

約数の個数: 16

約数和(自身を含む): 36617616

約数和(自身を除く): 17727706

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 145307, 290614, 726535, 1453070, 1888991, 3777982, 9444955, 18889910]

約数ペア:

[(1, 18889910), (2, 9444955), (5, 3777982), (10, 1888991), (13, 1453070), (26, 726535), (65, 290614), (130, 145307)]