8157560

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1871}}^1$

素因数の和:1991

約数の個数: 32

約数和(自身を含む): 18532800

約数和(自身を除く): 10375240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 1871, 2180, 3742, 4360, 7484, 9355, 14968, 18710, 37420, 74840, 203939, 407878, 815756, 1019695, 1631512, 2039390, 4078780, 8157560]

約数ペア:

[(1, 8157560), (2, 4078780), (4, 2039390), (5, 1631512), (8, 1019695), (10, 815756), (20, 407878), (40, 203939), (109, 74840), (218, 37420), (436, 18710), (545, 14968), (872, 9355), (1090, 7484), (1871, 4360), (2180, 3742)]