20157484820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{4297}}^1\times {\mathrm{21323}}^1$

素因数の和:25640

約数の個数: 48

約数和(自身を含む): 46191878208

約数和(自身を除く): 26034393388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 4297, 8594, 17188, 21323, 21485, 42646, 42970, 47267, 85292, 85940, 94534, 106615, 189068, 213230, 234553, 236335, 426460, 469106, 472670, 938212, 945340, 1172765, 2345530, 4691060, 91624931, 183249862, 366499724, 458124655, 916249310, 1007874241, 1832498620, 2015748482, 4031496964, 5039371205, 10078742410, 20157484820]

約数ペア:

[(1, 20157484820), (2, 10078742410), (4, 5039371205), (5, 4031496964), (10, 2015748482), (11, 1832498620), (20, 1007874241), (22, 916249310), (44, 458124655), (55, 366499724), (110, 183249862), (220, 91624931), (4297, 4691060), (8594, 2345530), (17188, 1172765), (21323, 945340), (21485, 938212), (42646, 472670), (42970, 469106), (47267, 426460), (85292, 236335), (85940, 234553), (94534, 213230), (106615, 189068)]