1421440

素因数分解:

$2^7\times 5^1\times {\mathrm{2221}}^1$

素因数の和:2240

約数の個数: 32

約数和(自身を含む): 3399660

約数和(自身を除く): 1978220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2221, 4442, 8884, 11105, 17768, 22210, 35536, 44420, 71072, 88840, 142144, 177680, 284288, 355360, 710720, 1421440]

約数ペア:

[(1, 1421440), (2, 710720), (4, 355360), (5, 284288), (8, 177680), (10, 142144), (16, 88840), (20, 71072), (32, 44420), (40, 35536), (64, 22210), (80, 17768), (128, 11105), (160, 8884), (320, 4442), (640, 2221)]