280022015

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{6763}}^1$

素因数の和:6808

約数の個数: 36

約数和(自身を含む): 423331704

約数和(自身を除く): 143309689

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 169, 245, 455, 637, 845, 1183, 3185, 5915, 6763, 8281, 33815, 41405, 47341, 87919, 236705, 331387, 439595, 615433, 1142947, 1656935, 3077165, 4308031, 5714735, 8000629, 21540155, 40003145, 56004403, 280022015]

約数ペア:

[(1, 280022015), (5, 56004403), (7, 40003145), (13, 21540155), (35, 8000629), (49, 5714735), (65, 4308031), (91, 3077165), (169, 1656935), (245, 1142947), (455, 615433), (637, 439595), (845, 331387), (1183, 236705), (3185, 87919), (5915, 47341), (6763, 41405), (8281, 33815)]