208021720

素因数分解:

$2^3\times 5^1\times {\mathrm{881}}^1\times {\mathrm{5903}}^1$

素因数の和:6795

約数の個数: 32

約数和(自身を含む): 468659520

約数和(自身を除く): 260637800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 881, 1762, 3524, 4405, 5903, 7048, 8810, 11806, 17620, 23612, 29515, 35240, 47224, 59030, 118060, 236120, 5200543, 10401086, 20802172, 26002715, 41604344, 52005430, 104010860, 208021720]

約数ペア:

[(1, 208021720), (2, 104010860), (4, 52005430), (5, 41604344), (8, 26002715), (10, 20802172), (20, 10401086), (40, 5200543), (881, 236120), (1762, 118060), (3524, 59030), (4405, 47224), (5903, 35240), (7048, 29515), (8810, 23612), (11806, 17620)]