77956420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{90647}}^1$

素因数の和:90699

約数の個数: 24

約数和(自身を含む): 167517504

約数和(自身を除く): 89561084

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 90647, 181294, 362588, 453235, 906470, 1812940, 3897821, 7795642, 15591284, 19489105, 38978210, 77956420]

約数ペア:

[(1, 77956420), (2, 38978210), (4, 19489105), (5, 15591284), (10, 7795642), (20, 3897821), (43, 1812940), (86, 906470), (172, 453235), (215, 362588), (430, 181294), (860, 90647)]