128178568

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{239}}^1$

素因数の和:470

約数の個数: 64

約数和(自身を含む): 282124800

約数和(自身を除く): 153946232

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 122, 157, 239, 244, 314, 427, 478, 488, 628, 854, 956, 1099, 1256, 1673, 1708, 1912, 2198, 3346, 3416, 4396, 6692, 8792, 9577, 13384, 14579, 19154, 29158, 37523, 38308, 58316, 67039, 75046, 76616, 102053, 116632, 134078, 150092, 204106, 262661, 268156, 300184, 408212, 525322, 536312, 816424, 1050644, 2101288, 2288903, 4577806, 9155612, 16022321, 18311224, 32044642, 64089284, 128178568]

約数ペア:

[(1, 128178568), (2, 64089284), (4, 32044642), (7, 18311224), (8, 16022321), (14, 9155612), (28, 4577806), (56, 2288903), (61, 2101288), (122, 1050644), (157, 816424), (239, 536312), (244, 525322), (314, 408212), (427, 300184), (478, 268156), (488, 262661), (628, 204106), (854, 150092), (956, 134078), (1099, 116632), (1256, 102053), (1673, 76616), (1708, 75046), (1912, 67039), (2198, 58316), (3346, 38308), (3416, 37523), (4396, 29158), (6692, 19154), (8792, 14579), (9577, 13384)]