5540120

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3221}}^1$

素因数の和:3275

約数の個数: 32

約数和(自身を含む): 12759120

約数和(自身を除く): 7219000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 3221, 6442, 12884, 16105, 25768, 32210, 64420, 128840, 138503, 277006, 554012, 692515, 1108024, 1385030, 2770060, 5540120]

約数ペア:

[(1, 5540120), (2, 2770060), (4, 1385030), (5, 1108024), (8, 692515), (10, 554012), (20, 277006), (40, 138503), (43, 128840), (86, 64420), (172, 32210), (215, 25768), (344, 16105), (430, 12884), (860, 6442), (1720, 3221)]