20174881892

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1\times {\mathrm{20959}}^1$

素因数の和:21272

約数の個数: 48

約数和(自身を含む): 39043952640

約数和(自身を除く): 18869070748

約数列:

[1, 2, 4, 11, 22, 44, 131, 167, 262, 334, 524, 668, 1441, 1837, 2882, 3674, 5764, 7348, 20959, 21877, 41918, 43754, 83836, 87508, 230549, 240647, 461098, 481294, 922196, 962588, 2745629, 3500153, 5491258, 7000306, 10982516, 14000612, 30201919, 38501683, 60403838, 77003366, 120807676, 154006732, 458520043, 917040086, 1834080172, 5043720473, 10087440946, 20174881892]

約数ペア:

[(1, 20174881892), (2, 10087440946), (4, 5043720473), (11, 1834080172), (22, 917040086), (44, 458520043), (131, 154006732), (167, 120807676), (262, 77003366), (334, 60403838), (524, 38501683), (668, 30201919), (1441, 14000612), (1837, 10982516), (2882, 7000306), (3674, 5491258), (5764, 3500153), (7348, 2745629), (20959, 962588), (21877, 922196), (41918, 481294), (43754, 461098), (83836, 240647), (87508, 230549)]