28190720

素因数分解:

$2^{11}\times 5^1\times {\mathrm{2753}}^1$

素因数の和:2780

約数の個数: 48

約数和(自身を含む): 67665780

約数和(自身を除く): 39475060

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 2753, 5120, 5506, 10240, 11012, 13765, 22024, 27530, 44048, 55060, 88096, 110120, 176192, 220240, 352384, 440480, 704768, 880960, 1409536, 1761920, 2819072, 3523840, 5638144, 7047680, 14095360, 28190720]

約数ペア:

[(1, 28190720), (2, 14095360), (4, 7047680), (5, 5638144), (8, 3523840), (10, 2819072), (16, 1761920), (20, 1409536), (32, 880960), (40, 704768), (64, 440480), (80, 352384), (128, 220240), (160, 176192), (256, 110120), (320, 88096), (512, 55060), (640, 44048), (1024, 27530), (1280, 22024), (2048, 13765), (2560, 11012), (2753, 10240), (5120, 5506)]