71811975

素因数分解:

$3^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{137}}^1\times {\mathrm{241}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 124233120

約数和(自身を除く): 52421145

約数列:

[1, 3, 5, 15, 25, 29, 75, 87, 137, 145, 241, 411, 435, 685, 723, 725, 1205, 2055, 2175, 3425, 3615, 3973, 6025, 6989, 10275, 11919, 18075, 19865, 20967, 33017, 34945, 59595, 99051, 99325, 104835, 165085, 174725, 297975, 495255, 524175, 825425, 957493, 2476275, 2872479, 4787465, 14362395, 23937325, 71811975]

約数ペア:

[(1, 71811975), (3, 23937325), (5, 14362395), (15, 4787465), (25, 2872479), (29, 2476275), (75, 957493), (87, 825425), (137, 524175), (145, 495255), (241, 297975), (411, 174725), (435, 165085), (685, 104835), (723, 99325), (725, 99051), (1205, 59595), (2055, 34945), (2175, 33017), (3425, 20967), (3615, 19865), (3973, 18075), (6025, 11919), (6989, 10275)]