211079240

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{20533}}^1$

素因数の和:20801

約数の個数: 32

約数和(自身を含む): 476799480

約数和(自身を除く): 265720240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 10280, 20533, 41066, 82132, 102665, 164264, 205330, 410660, 821320, 5276981, 10553962, 21107924, 26384905, 42215848, 52769810, 105539620, 211079240]

約数ペア:

[(1, 211079240), (2, 105539620), (4, 52769810), (5, 42215848), (8, 26384905), (10, 21107924), (20, 10553962), (40, 5276981), (257, 821320), (514, 410660), (1028, 205330), (1285, 164264), (2056, 102665), (2570, 82132), (5140, 41066), (10280, 20533)]