19632560

素因数分解:

$2^4\times 5^1\times {\mathrm{245407}}^1$

素因数の和:245420

約数の個数: 20

約数和(自身を含む): 45645888

約数和(自身を除く): 26013328

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 245407, 490814, 981628, 1227035, 1963256, 2454070, 3926512, 4908140, 9816280, 19632560]

約数ペア:

[(1, 19632560), (2, 9816280), (4, 4908140), (5, 3926512), (8, 2454070), (10, 1963256), (16, 1227035), (20, 981628), (40, 490814), (80, 245407)]