80869040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144409}}^1$

素因数の和:144429

約数の個数: 40

約数和(自身を含む): 214882080

約数和(自身を除く): 134013040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144409, 288818, 577636, 722045, 1010863, 1155272, 1444090, 2021726, 2310544, 2888180, 4043452, 5054315, 5776360, 8086904, 10108630, 11552720, 16173808, 20217260, 40434520, 80869040]

約数ペア:

[(1, 80869040), (2, 40434520), (4, 20217260), (5, 16173808), (7, 11552720), (8, 10108630), (10, 8086904), (14, 5776360), (16, 5054315), (20, 4043452), (28, 2888180), (35, 2310544), (40, 2021726), (56, 1444090), (70, 1155272), (80, 1010863), (112, 722045), (140, 577636), (280, 288818), (560, 144409)]