257520890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1109}}^1\times {\mathrm{2111}}^1$

素因数の和:3238

約数の個数: 32

約数和(自身を含む): 506373120

約数和(自身を除く): 248852230

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1109, 2111, 2218, 4222, 5545, 10555, 11090, 12199, 21110, 23221, 24398, 46442, 60995, 116105, 121990, 232210, 2341099, 4682198, 11705495, 23410990, 25752089, 51504178, 128760445, 257520890]

約数ペア:

[(1, 257520890), (2, 128760445), (5, 51504178), (10, 25752089), (11, 23410990), (22, 11705495), (55, 4682198), (110, 2341099), (1109, 232210), (2111, 121990), (2218, 116105), (4222, 60995), (5545, 46442), (10555, 24398), (11090, 23221), (12199, 21110)]