278940928

素因数分解:

$2^8\times 7^2\times {\mathrm{37}}^1\times {\mathrm{601}}^1$

素因数の和:668

約数の個数: 108

約数和(自身を含む): 666309252

約数和(自身を除く): 387368324

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 37, 49, 56, 64, 74, 98, 112, 128, 148, 196, 224, 256, 259, 296, 392, 448, 518, 592, 601, 784, 896, 1036, 1184, 1202, 1568, 1792, 1813, 2072, 2368, 2404, 3136, 3626, 4144, 4207, 4736, 4808, 6272, 7252, 8288, 8414, 9472, 9616, 12544, 14504, 16576, 16828, 19232, 22237, 29008, 29449, 33152, 33656, 38464, 44474, 58016, 58898, 66304, 67312, 76928, 88948, 116032, 117796, 134624, 153856, 155659, 177896, 232064, 235592, 269248, 311318, 355792, 464128, 471184, 538496, 622636, 711584, 942368, 1076992, 1089613, 1245272, 1423168, 1884736, 2179226, 2490544, 2846336, 3769472, 4358452, 4981088, 5692672, 7538944, 8716904, 9962176, 17433808, 19924352, 34867616, 39848704, 69735232, 139470464, 278940928]

約数ペア:

[(1, 278940928), (2, 139470464), (4, 69735232), (7, 39848704), (8, 34867616), (14, 19924352), (16, 17433808), (28, 9962176), (32, 8716904), (37, 7538944), (49, 5692672), (56, 4981088), (64, 4358452), (74, 3769472), (98, 2846336), (112, 2490544), (128, 2179226), (148, 1884736), (196, 1423168), (224, 1245272), (256, 1089613), (259, 1076992), (296, 942368), (392, 711584), (448, 622636), (518, 538496), (592, 471184), (601, 464128), (784, 355792), (896, 311318), (1036, 269248), (1184, 235592), (1202, 232064), (1568, 177896), (1792, 155659), (1813, 153856), (2072, 134624), (2368, 117796), (2404, 116032), (3136, 88948), (3626, 76928), (4144, 67312), (4207, 66304), (4736, 58898), (4808, 58016), (6272, 44474), (7252, 38464), (8288, 33656), (8414, 33152), (9472, 29449), (9616, 29008), (12544, 22237), (14504, 19232), (16576, 16828)]