29991975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1619}}^1$

素因数の和:1664

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 26254425

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1235, 1425, 1619, 3705, 4857, 6175, 8095, 18525, 21047, 24285, 30761, 40475, 63141, 92283, 105235, 121425, 153805, 315705, 399893, 461415, 526175, 769025, 1199679, 1578525, 1999465, 2307075, 5998395, 9997325, 29991975]

約数ペア:

[(1, 29991975), (3, 9997325), (5, 5998395), (13, 2307075), (15, 1999465), (19, 1578525), (25, 1199679), (39, 769025), (57, 526175), (65, 461415), (75, 399893), (95, 315705), (195, 153805), (247, 121425), (285, 105235), (325, 92283), (475, 63141), (741, 40475), (975, 30761), (1235, 24285), (1425, 21047), (1619, 18525), (3705, 8095), (4857, 6175)]