31728128

素因数分解:

$2^9\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2048

約数の個数: 40

約数和(自身を含む): 65472000

約数和(自身を除く): 33743872

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1984, 1999, 3968, 3998, 7936, 7996, 15872, 15992, 31984, 61969, 63968, 123938, 127936, 247876, 255872, 495752, 511744, 991504, 1023488, 1983008, 3966016, 7932032, 15864064, 31728128]

約数ペア:

[(1, 31728128), (2, 15864064), (4, 7932032), (8, 3966016), (16, 1983008), (31, 1023488), (32, 991504), (62, 511744), (64, 495752), (124, 255872), (128, 247876), (248, 127936), (256, 123938), (496, 63968), (512, 61969), (992, 31984), (1984, 15992), (1999, 15872), (3968, 7996), (3998, 7936)]