8885680

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1019}}^1$

素因数の和:1141

約数の個数: 40

約数和(自身を含む): 20869200

約数和(自身を除く): 11983520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1019, 1090, 1744, 2038, 2180, 4076, 4360, 5095, 8152, 8720, 10190, 16304, 20380, 40760, 81520, 111071, 222142, 444284, 555355, 888568, 1110710, 1777136, 2221420, 4442840, 8885680]

約数ペア:

[(1, 8885680), (2, 4442840), (4, 2221420), (5, 1777136), (8, 1110710), (10, 888568), (16, 555355), (20, 444284), (40, 222142), (80, 111071), (109, 81520), (218, 40760), (436, 20380), (545, 16304), (872, 10190), (1019, 8720), (1090, 8152), (1744, 5095), (2038, 4360), (2180, 4076)]