72703720

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{6911}}^1$

素因数の和:7185

約数の個数: 32

約数和(自身を含む): 164229120

約数和(自身を除く): 91525400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 6911, 10520, 13822, 27644, 34555, 55288, 69110, 138220, 276440, 1817593, 3635186, 7270372, 9087965, 14540744, 18175930, 36351860, 72703720]

約数ペア:

[(1, 72703720), (2, 36351860), (4, 18175930), (5, 14540744), (8, 9087965), (10, 7270372), (20, 3635186), (40, 1817593), (263, 276440), (526, 138220), (1052, 69110), (1315, 55288), (2104, 34555), (2630, 27644), (5260, 13822), (6911, 10520)]