78832840

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{12553}}^1$

素因数の和:12721

約数の個数: 32

約数和(自身を含む): 178517880

約数和(自身を除く): 99685040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 12553, 25106, 50212, 62765, 100424, 125530, 251060, 502120, 1970821, 3941642, 7883284, 9854105, 15766568, 19708210, 39416420, 78832840]

約数ペア:

[(1, 78832840), (2, 39416420), (4, 19708210), (5, 15766568), (8, 9854105), (10, 7883284), (20, 3941642), (40, 1970821), (157, 502120), (314, 251060), (628, 125530), (785, 100424), (1256, 62765), (1570, 50212), (3140, 25106), (6280, 12553)]