208704145

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1233

約数の個数: 32

約数和(自身を含む): 280433664

約数和(自身を除く): 71729519

約数列:

[1, 5, 13, 41, 65, 71, 205, 355, 533, 923, 1103, 2665, 2911, 4615, 5515, 14339, 14555, 37843, 45223, 71695, 78313, 189215, 226115, 391565, 587899, 1018069, 2939495, 3210833, 5090345, 16054165, 41740829, 208704145]

約数ペア:

[(1, 208704145), (5, 41740829), (13, 16054165), (41, 5090345), (65, 3210833), (71, 2939495), (205, 1018069), (355, 587899), (533, 391565), (923, 226115), (1103, 189215), (2665, 78313), (2911, 71695), (4615, 45223), (5515, 37843), (14339, 14555)]