278815248

素因数分解:

$2^4\times 3^2\times {\mathrm{97}}^1\times {\mathrm{19961}}^1$

素因数の和:20072

約数の個数: 60

約数和(自身を含む): 788379228

約数和(自身を除く): 509563980

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 97, 144, 194, 291, 388, 582, 776, 873, 1164, 1552, 1746, 2328, 3492, 4656, 6984, 13968, 19961, 39922, 59883, 79844, 119766, 159688, 179649, 239532, 319376, 359298, 479064, 718596, 958128, 1437192, 1936217, 2874384, 3872434, 5808651, 7744868, 11617302, 15489736, 17425953, 23234604, 30979472, 34851906, 46469208, 69703812, 92938416, 139407624, 278815248]

約数ペア:

[(1, 278815248), (2, 139407624), (3, 92938416), (4, 69703812), (6, 46469208), (8, 34851906), (9, 30979472), (12, 23234604), (16, 17425953), (18, 15489736), (24, 11617302), (36, 7744868), (48, 5808651), (72, 3872434), (97, 2874384), (144, 1936217), (194, 1437192), (291, 958128), (388, 718596), (582, 479064), (776, 359298), (873, 319376), (1164, 239532), (1552, 179649), (1746, 159688), (2328, 119766), (3492, 79844), (4656, 59883), (6984, 39922), (13968, 19961)]