28343315

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{809}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 46539360

約数和(自身を除く): 18196045

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 637, 715, 809, 1001, 2695, 3185, 4045, 5005, 5663, 7007, 8899, 10517, 28315, 35035, 39641, 44495, 52585, 62293, 73619, 115687, 198205, 311465, 368095, 436051, 515333, 578435, 809809, 2180255, 2576665, 4049045, 5668663, 28343315]

約数ペア:

[(1, 28343315), (5, 5668663), (7, 4049045), (11, 2576665), (13, 2180255), (35, 809809), (49, 578435), (55, 515333), (65, 436051), (77, 368095), (91, 311465), (143, 198205), (245, 115687), (385, 73619), (455, 62293), (539, 52585), (637, 44495), (715, 39641), (809, 35035), (1001, 28315), (2695, 10517), (3185, 8899), (4045, 7007), (5005, 5663)]