20355860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{145399}}^1$

素因数の和:145415

約数の個数: 24

約数和(自身を含む): 48854400

約数和(自身を除く): 28498540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 145399, 290798, 581596, 726995, 1017793, 1453990, 2035586, 2907980, 4071172, 5088965, 10177930, 20355860]

約数ペア:

[(1, 20355860), (2, 10177930), (4, 5088965), (5, 4071172), (7, 2907980), (10, 2035586), (14, 1453990), (20, 1017793), (28, 726995), (35, 581596), (70, 290798), (140, 145399)]