278344880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{316301}}^1$

素因数の和:316325

約数の個数: 40

約数和(自身を含む): 705986064

約数和(自身を除く): 427641184

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 316301, 632602, 1265204, 1581505, 2530408, 3163010, 3479311, 5060816, 6326020, 6958622, 12652040, 13917244, 17396555, 25304080, 27834488, 34793110, 55668976, 69586220, 139172440, 278344880]

約数ペア:

[(1, 278344880), (2, 139172440), (4, 69586220), (5, 55668976), (8, 34793110), (10, 27834488), (11, 25304080), (16, 17396555), (20, 13917244), (22, 12652040), (40, 6958622), (44, 6326020), (55, 5060816), (80, 3479311), (88, 3163010), (110, 2530408), (176, 1581505), (220, 1265204), (440, 632602), (880, 316301)]