140840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 362880

約数和(自身を除く): 222040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503, 1006, 2012, 2515, 3521, 4024, 5030, 7042, 10060, 14084, 17605, 20120, 28168, 35210, 70420, 140840]

約数ペア:

[(1, 140840), (2, 70420), (4, 35210), (5, 28168), (7, 20120), (8, 17605), (10, 14084), (14, 10060), (20, 7042), (28, 5030), (35, 4024), (40, 3521), (56, 2515), (70, 2012), (140, 1006), (280, 503)]