7920128

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{499}}^1$

素因数の和:548

約数の個数: 40

約数和(自身を含む): 16368000

約数和(自身を除く): 8447872

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 499, 512, 992, 998, 1984, 1996, 3968, 3992, 7936, 7984, 15469, 15872, 15968, 30938, 31936, 61876, 63872, 123752, 127744, 247504, 255488, 495008, 990016, 1980032, 3960064, 7920128]

約数ペア:

[(1, 7920128), (2, 3960064), (4, 1980032), (8, 990016), (16, 495008), (31, 255488), (32, 247504), (62, 127744), (64, 123752), (124, 63872), (128, 61876), (248, 31936), (256, 30938), (496, 15968), (499, 15872), (512, 15469), (992, 7984), (998, 7936), (1984, 3992), (1996, 3968)]