12845105

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{109}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 20013840

約数和(自身を除く): 7168735

約数列:

[1, 5, 7, 13, 35, 37, 49, 65, 91, 109, 185, 245, 259, 455, 481, 545, 637, 763, 1295, 1417, 1813, 2405, 3185, 3367, 3815, 4033, 5341, 7085, 9065, 9919, 16835, 20165, 23569, 26705, 28231, 49595, 52429, 69433, 117845, 141155, 197617, 262145, 347165, 367003, 988085, 1835015, 2569021, 12845105]

約数ペア:

[(1, 12845105), (5, 2569021), (7, 1835015), (13, 988085), (35, 367003), (37, 347165), (49, 262145), (65, 197617), (91, 141155), (109, 117845), (185, 69433), (245, 52429), (259, 49595), (455, 28231), (481, 26705), (545, 23569), (637, 20165), (763, 16835), (1295, 9919), (1417, 9065), (1813, 7085), (2405, 5341), (3185, 4033), (3367, 3815)]