19694120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{4517}}^1$

素因数の和:4637

約数の個数: 32

約数和(自身を含む): 44728200

約数和(自身を除く): 25034080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 4517, 9034, 18068, 22585, 36136, 45170, 90340, 180680, 492353, 984706, 1969412, 2461765, 3938824, 4923530, 9847060, 19694120]

約数ペア:

[(1, 19694120), (2, 9847060), (4, 4923530), (5, 3938824), (8, 2461765), (10, 1969412), (20, 984706), (40, 492353), (109, 180680), (218, 90340), (436, 45170), (545, 36136), (872, 22585), (1090, 18068), (2180, 9034), (4360, 4517)]