21775360

素因数分解:

$2^{10}\times 5^1\times {\mathrm{4253}}^1$

素因数の和:4278

約数の個数: 44

約数和(自身を含む): 52247628

約数和(自身を除く): 30472268

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 4253, 5120, 8506, 17012, 21265, 34024, 42530, 68048, 85060, 136096, 170120, 272192, 340240, 544384, 680480, 1088768, 1360960, 2177536, 2721920, 4355072, 5443840, 10887680, 21775360]

約数ペア:

[(1, 21775360), (2, 10887680), (4, 5443840), (5, 4355072), (8, 2721920), (10, 2177536), (16, 1360960), (20, 1088768), (32, 680480), (40, 544384), (64, 340240), (80, 272192), (128, 170120), (160, 136096), (256, 85060), (320, 68048), (512, 42530), (640, 34024), (1024, 21265), (1280, 17012), (2560, 8506), (4253, 5120)]