19215340

素因数分解:

$2^2\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2293}}^1$

素因数の和:2721

約数の個数: 24

約数和(自身を含む): 40466160

約数和(自身を除く): 21250820

約数列:

[1, 2, 4, 5, 10, 20, 419, 838, 1676, 2095, 2293, 4190, 4586, 8380, 9172, 11465, 22930, 45860, 960767, 1921534, 3843068, 4803835, 9607670, 19215340]

約数ペア:

[(1, 19215340), (2, 9607670), (4, 4803835), (5, 3843068), (10, 1921534), (20, 960767), (419, 45860), (838, 22930), (1676, 11465), (2095, 9172), (2293, 8380), (4190, 4586)]