19974912

素因数分解:

$2^8\times 3^1\times {\mathrm{31}}^1\times {\mathrm{839}}^1$

素因数の和:889

約数の個数: 72

約数和(自身を含む): 54942720

約数和(自身を除く): 34967808

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 31, 32, 48, 62, 64, 93, 96, 124, 128, 186, 192, 248, 256, 372, 384, 496, 744, 768, 839, 992, 1488, 1678, 1984, 2517, 2976, 3356, 3968, 5034, 5952, 6712, 7936, 10068, 11904, 13424, 20136, 23808, 26009, 26848, 40272, 52018, 53696, 78027, 80544, 104036, 107392, 156054, 161088, 208072, 214784, 312108, 322176, 416144, 624216, 644352, 832288, 1248432, 1664576, 2496864, 3329152, 4993728, 6658304, 9987456, 19974912]

約数ペア:

[(1, 19974912), (2, 9987456), (3, 6658304), (4, 4993728), (6, 3329152), (8, 2496864), (12, 1664576), (16, 1248432), (24, 832288), (31, 644352), (32, 624216), (48, 416144), (62, 322176), (64, 312108), (93, 214784), (96, 208072), (124, 161088), (128, 156054), (186, 107392), (192, 104036), (248, 80544), (256, 78027), (372, 53696), (384, 52018), (496, 40272), (744, 26848), (768, 26009), (839, 23808), (992, 20136), (1488, 13424), (1678, 11904), (1984, 10068), (2517, 7936), (2976, 6712), (3356, 5952), (3968, 5034)]