27660920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 71608320

約数和(自身を除く): 43947400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 223, 280, 443, 446, 886, 892, 1115, 1561, 1772, 1784, 2215, 2230, 3101, 3122, 3544, 4430, 4460, 6202, 6244, 7805, 8860, 8920, 12404, 12488, 15505, 15610, 17720, 24808, 31010, 31220, 62020, 62440, 98789, 124040, 197578, 395156, 493945, 691523, 790312, 987890, 1383046, 1975780, 2766092, 3457615, 3951560, 5532184, 6915230, 13830460, 27660920]

約数ペア:

[(1, 27660920), (2, 13830460), (4, 6915230), (5, 5532184), (7, 3951560), (8, 3457615), (10, 2766092), (14, 1975780), (20, 1383046), (28, 987890), (35, 790312), (40, 691523), (56, 493945), (70, 395156), (140, 197578), (223, 124040), (280, 98789), (443, 62440), (446, 62020), (886, 31220), (892, 31010), (1115, 24808), (1561, 17720), (1772, 15610), (1784, 15505), (2215, 12488), (2230, 12404), (3101, 8920), (3122, 8860), (3544, 7805), (4430, 6244), (4460, 6202)]