1245778840

素因数分解:

$2^3\times 5^1\times {\mathrm{31144471}}^1$

素因数の和:31144482

約数の個数: 16

約数和(自身を含む): 2803002480

約数和(自身を除く): 1557223640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 31144471, 62288942, 124577884, 155722355, 249155768, 311444710, 622889420, 1245778840]

約数ペア:

[(1, 1245778840), (2, 622889420), (4, 311444710), (5, 249155768), (8, 155722355), (10, 124577884), (20, 62288942), (40, 31144471)]