142720

素因数分解:

$2^7\times 5^1\times {\mathrm{223}}^1$

素因数の和:242

約数の個数: 32

約数和(自身を含む): 342720

約数和(自身を除く): 200000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 223, 320, 446, 640, 892, 1115, 1784, 2230, 3568, 4460, 7136, 8920, 14272, 17840, 28544, 35680, 71360, 142720]

約数ペア:

[(1, 142720), (2, 71360), (4, 35680), (5, 28544), (8, 17840), (10, 14272), (16, 8920), (20, 7136), (32, 4460), (40, 3568), (64, 2230), (80, 1784), (128, 1115), (160, 892), (223, 640), (320, 446)]