278992

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:115

約数の個数: 40

約数和(自身を含む): 642816

約数和(自身を除く): 363824

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 53, 56, 94, 106, 112, 188, 212, 329, 371, 376, 424, 658, 742, 752, 848, 1316, 1484, 2491, 2632, 2968, 4982, 5264, 5936, 9964, 17437, 19928, 34874, 39856, 69748, 139496, 278992]

約数ペア:

[(1, 278992), (2, 139496), (4, 69748), (7, 39856), (8, 34874), (14, 19928), (16, 17437), (28, 9964), (47, 5936), (53, 5264), (56, 4982), (94, 2968), (106, 2632), (112, 2491), (188, 1484), (212, 1316), (329, 848), (371, 752), (376, 742), (424, 658)]