712840

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 1632960

約数和(自身を除く): 920120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 251, 284, 355, 502, 568, 710, 1004, 1255, 1420, 2008, 2510, 2840, 5020, 10040, 17821, 35642, 71284, 89105, 142568, 178210, 356420, 712840]

約数ペア:

[(1, 712840), (2, 356420), (4, 178210), (5, 142568), (8, 89105), (10, 71284), (20, 35642), (40, 17821), (71, 10040), (142, 5020), (251, 2840), (284, 2510), (355, 2008), (502, 1420), (568, 1255), (710, 1004)]