19681120

素因数分解:

$2^5\times 5^1\times {\mathrm{123007}}^1$

素因数の和:123022

約数の個数: 24

約数和(自身を含む): 46497024

約数和(自身を除く): 26815904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 123007, 246014, 492028, 615035, 984056, 1230070, 1968112, 2460140, 3936224, 4920280, 9840560, 19681120]

約数ペア:

[(1, 19681120), (2, 9840560), (4, 4920280), (5, 3936224), (8, 2460140), (10, 1968112), (16, 1230070), (20, 984056), (32, 615035), (40, 492028), (80, 246014), (160, 123007)]