131335040

素因数分解:

$2^7\times 5^1\times {\mathrm{205211}}^1$

素因数の和:205230

約数の個数: 32

約数和(自身を含む): 313974360

約数和(自身を除く): 182639320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 205211, 410422, 820844, 1026055, 1641688, 2052110, 3283376, 4104220, 6566752, 8208440, 13133504, 16416880, 26267008, 32833760, 65667520, 131335040]

約数ペア:

[(1, 131335040), (2, 65667520), (4, 32833760), (5, 26267008), (8, 16416880), (10, 13133504), (16, 8208440), (20, 6566752), (32, 4104220), (40, 3283376), (64, 2052110), (80, 1641688), (128, 1026055), (160, 820844), (320, 410422), (640, 205211)]