257849216

素因数分解:

$2^7\times {\mathrm{907}}^1\times {\mathrm{2221}}^1$

素因数の和:3142

約数の個数: 32

約数和(自身を含む): 514481880

約数和(自身を除く): 256632664

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 907, 1814, 2221, 3628, 4442, 7256, 8884, 14512, 17768, 29024, 35536, 58048, 71072, 116096, 142144, 284288, 2014447, 4028894, 8057788, 16115576, 32231152, 64462304, 128924608, 257849216]

約数ペア:

[(1, 257849216), (2, 128924608), (4, 64462304), (8, 32231152), (16, 16115576), (32, 8057788), (64, 4028894), (128, 2014447), (907, 284288), (1814, 142144), (2221, 116096), (3628, 71072), (4442, 58048), (7256, 35536), (8884, 29024), (14512, 17768)]