427123456

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{503}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 890072064

約数和(自身を除く): 462948608

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 107, 124, 128, 214, 248, 256, 428, 496, 503, 856, 992, 1006, 1712, 1984, 2012, 3317, 3424, 3968, 4024, 6634, 6848, 7936, 8048, 13268, 13696, 15593, 16096, 26536, 27392, 31186, 32192, 53072, 53821, 62372, 64384, 106144, 107642, 124744, 128768, 212288, 215284, 249488, 424576, 430568, 498976, 849152, 861136, 997952, 1668451, 1722272, 1995904, 3336902, 3444544, 3991808, 6673804, 6889088, 13347608, 13778176, 26695216, 53390432, 106780864, 213561728, 427123456]

約数ペア:

[(1, 427123456), (2, 213561728), (4, 106780864), (8, 53390432), (16, 26695216), (31, 13778176), (32, 13347608), (62, 6889088), (64, 6673804), (107, 3991808), (124, 3444544), (128, 3336902), (214, 1995904), (248, 1722272), (256, 1668451), (428, 997952), (496, 861136), (503, 849152), (856, 498976), (992, 430568), (1006, 424576), (1712, 249488), (1984, 215284), (2012, 212288), (3317, 128768), (3424, 124744), (3968, 107642), (4024, 106144), (6634, 64384), (6848, 62372), (7936, 53821), (8048, 53072), (13268, 32192), (13696, 31186), (15593, 27392), (16096, 26536)]