20128768

素因数分解:

$2^{10}\times {\mathrm{11}}^1\times {\mathrm{1787}}^1$

素因数の和:1818

約数の個数: 44

約数和(自身を含む): 43920432

約数和(自身を除く): 23791664

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 128, 176, 256, 352, 512, 704, 1024, 1408, 1787, 2816, 3574, 5632, 7148, 11264, 14296, 19657, 28592, 39314, 57184, 78628, 114368, 157256, 228736, 314512, 457472, 629024, 914944, 1258048, 1829888, 2516096, 5032192, 10064384, 20128768]

約数ペア:

[(1, 20128768), (2, 10064384), (4, 5032192), (8, 2516096), (11, 1829888), (16, 1258048), (22, 914944), (32, 629024), (44, 457472), (64, 314512), (88, 228736), (128, 157256), (176, 114368), (256, 78628), (352, 57184), (512, 39314), (704, 28592), (1024, 19657), (1408, 14296), (1787, 11264), (2816, 7148), (3574, 5632)]