87277720

素因数分解:

$2^3\times 5^1\times {\mathrm{251}}^1\times {\mathrm{8693}}^1$

素因数の和:8955

約数の個数: 32

約数和(自身を含む): 197179920

約数和(自身を除く): 109902200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 251, 502, 1004, 1255, 2008, 2510, 5020, 8693, 10040, 17386, 34772, 43465, 69544, 86930, 173860, 347720, 2181943, 4363886, 8727772, 10909715, 17455544, 21819430, 43638860, 87277720]

約数ペア:

[(1, 87277720), (2, 43638860), (4, 21819430), (5, 17455544), (8, 10909715), (10, 8727772), (20, 4363886), (40, 2181943), (251, 347720), (502, 173860), (1004, 86930), (1255, 69544), (2008, 43465), (2510, 34772), (5020, 17386), (8693, 10040)]