28282880

素因数分解:

$2^{12}\times 5^1\times {\mathrm{1381}}^1$

素因数の和:1410

約数の個数: 52

約数和(自身を含む): 67919772

約数和(自身を除く): 39636892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 1381, 2048, 2560, 2762, 4096, 5120, 5524, 6905, 10240, 11048, 13810, 20480, 22096, 27620, 44192, 55240, 88384, 110480, 176768, 220960, 353536, 441920, 707072, 883840, 1414144, 1767680, 2828288, 3535360, 5656576, 7070720, 14141440, 28282880]

約数ペア:

[(1, 28282880), (2, 14141440), (4, 7070720), (5, 5656576), (8, 3535360), (10, 2828288), (16, 1767680), (20, 1414144), (32, 883840), (40, 707072), (64, 441920), (80, 353536), (128, 220960), (160, 176768), (256, 110480), (320, 88384), (512, 55240), (640, 44192), (1024, 27620), (1280, 22096), (1381, 20480), (2048, 13810), (2560, 11048), (2762, 10240), (4096, 6905), (5120, 5524)]