11985155

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 48

約数和(自身を含む): 18615744

約数和(自身を除く): 6630589

約数列:

[1, 5, 7, 13, 35, 49, 53, 65, 71, 91, 245, 265, 355, 371, 455, 497, 637, 689, 923, 1855, 2485, 2597, 3185, 3445, 3479, 3763, 4615, 4823, 6461, 12985, 17395, 18815, 24115, 26341, 32305, 33761, 45227, 48919, 131705, 168805, 184387, 226135, 244595, 342433, 921935, 1712165, 2397031, 11985155]

約数ペア:

[(1, 11985155), (5, 2397031), (7, 1712165), (13, 921935), (35, 342433), (49, 244595), (53, 226135), (65, 184387), (71, 168805), (91, 131705), (245, 48919), (265, 45227), (355, 33761), (371, 32305), (455, 26341), (497, 24115), (637, 18815), (689, 17395), (923, 12985), (1855, 6461), (2485, 4823), (2597, 4615), (3185, 3763), (3445, 3479)]