256878

素因数分解:

$2^1\times 3^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:149

約数の個数: 32

約数和(自身を含む): 587520

約数和(自身を除く): 330642

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 71, 134, 142, 201, 213, 402, 426, 603, 639, 1206, 1278, 1809, 1917, 3618, 3834, 4757, 9514, 14271, 28542, 42813, 85626, 128439, 256878]

約数ペア:

[(1, 256878), (2, 128439), (3, 85626), (6, 42813), (9, 28542), (18, 14271), (27, 9514), (54, 4757), (67, 3834), (71, 3618), (134, 1917), (142, 1809), (201, 1278), (213, 1206), (402, 639), (426, 603)]