18478840

素因数分解:

$2^3\times 5^1\times {\mathrm{461971}}^1$

素因数の和:461982

約数の個数: 16

約数和(自身を含む): 41577480

約数和(自身を除く): 23098640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461971, 923942, 1847884, 2309855, 3695768, 4619710, 9239420, 18478840]

約数ペア:

[(1, 18478840), (2, 9239420), (4, 4619710), (5, 3695768), (8, 2309855), (10, 1847884), (20, 923942), (40, 461971)]