51209015

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{383}}^1$

素因数の和:440

約数の個数: 48

約数和(自身を含む): 77220864

約数和(自身を除く): 26011849

約数列:

[1, 5, 11, 13, 17, 55, 65, 85, 121, 143, 187, 221, 383, 605, 715, 935, 1105, 1573, 1915, 2057, 2431, 4213, 4979, 6511, 7865, 10285, 12155, 21065, 24895, 26741, 32555, 46343, 54769, 71621, 84643, 133705, 231715, 273845, 358105, 423215, 602459, 787831, 931073, 3012295, 3939155, 4655365, 10241803, 51209015]

約数ペア:

[(1, 51209015), (5, 10241803), (11, 4655365), (13, 3939155), (17, 3012295), (55, 931073), (65, 787831), (85, 602459), (121, 423215), (143, 358105), (187, 273845), (221, 231715), (383, 133705), (605, 84643), (715, 71621), (935, 54769), (1105, 46343), (1573, 32555), (1915, 26741), (2057, 24895), (2431, 21065), (4213, 12155), (4979, 10285), (6511, 7865)]