81524050

素因数分解:

$2^1\times 5^2\times {\mathrm{79}}^1\times {\mathrm{20639}}^1$

素因数の和:20730

約数の個数: 24

約数和(自身を含む): 153561600

約数和(自身を除く): 72037550

約数列:

[1, 2, 5, 10, 25, 50, 79, 158, 395, 790, 1975, 3950, 20639, 41278, 103195, 206390, 515975, 1031950, 1630481, 3260962, 8152405, 16304810, 40762025, 81524050]

約数ペア:

[(1, 81524050), (2, 40762025), (5, 16304810), (10, 8152405), (25, 3260962), (50, 1630481), (79, 1031950), (158, 515975), (395, 206390), (790, 103195), (1975, 41278), (3950, 20639)]