278420688

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{21247}}^1$

素因数の和:21281

約数の個数: 120

約数和(自身を含む): 959049728

約数和(自身を除く): 680629040

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 36, 39, 42, 48, 52, 56, 63, 72, 78, 84, 91, 104, 112, 117, 126, 144, 156, 168, 182, 208, 234, 252, 273, 312, 336, 364, 468, 504, 546, 624, 728, 819, 936, 1008, 1092, 1456, 1638, 1872, 2184, 3276, 4368, 6552, 13104, 21247, 42494, 63741, 84988, 127482, 148729, 169976, 191223, 254964, 276211, 297458, 339952, 382446, 446187, 509928, 552422, 594916, 764892, 828633, 892374, 1019856, 1104844, 1189832, 1338561, 1529784, 1657266, 1784748, 1933477, 2209688, 2379664, 2485899, 2677122, 3059568, 3314532, 3569496, 3866954, 4419376, 4971798, 5354244, 5800431, 6629064, 7138992, 7733908, 9943596, 10708488, 11600862, 13258128, 15467816, 17401293, 19887192, 21416976, 23201724, 30935632, 34802586, 39774384, 46403448, 69605172, 92806896, 139210344, 278420688]

約数ペア:

[(1, 278420688), (2, 139210344), (3, 92806896), (4, 69605172), (6, 46403448), (7, 39774384), (8, 34802586), (9, 30935632), (12, 23201724), (13, 21416976), (14, 19887192), (16, 17401293), (18, 15467816), (21, 13258128), (24, 11600862), (26, 10708488), (28, 9943596), (36, 7733908), (39, 7138992), (42, 6629064), (48, 5800431), (52, 5354244), (56, 4971798), (63, 4419376), (72, 3866954), (78, 3569496), (84, 3314532), (91, 3059568), (104, 2677122), (112, 2485899), (117, 2379664), (126, 2209688), (144, 1933477), (156, 1784748), (168, 1657266), (182, 1529784), (208, 1338561), (234, 1189832), (252, 1104844), (273, 1019856), (312, 892374), (336, 828633), (364, 764892), (468, 594916), (504, 552422), (546, 509928), (624, 446187), (728, 382446), (819, 339952), (936, 297458), (1008, 276211), (1092, 254964), (1456, 191223), (1638, 169976), (1872, 148729), (2184, 127482), (3276, 84988), (4368, 63741), (6552, 42494), (13104, 21247)]