128317475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^2\times {\mathrm{251}}^1$

素因数の和:309

約数の個数: 54

約数和(自身を含む): 190136268

約数和(自身を除く): 61818793

約数列:

[1, 5, 11, 13, 25, 55, 65, 121, 143, 169, 251, 275, 325, 605, 715, 845, 1255, 1573, 1859, 2761, 3025, 3263, 3575, 4225, 6275, 7865, 9295, 13805, 16315, 20449, 30371, 35893, 39325, 42419, 46475, 69025, 81575, 102245, 151855, 179465, 212095, 394823, 466609, 511225, 759275, 897325, 1060475, 1974115, 2333045, 5132699, 9870575, 11665225, 25663495, 128317475]

約数ペア:

[(1, 128317475), (5, 25663495), (11, 11665225), (13, 9870575), (25, 5132699), (55, 2333045), (65, 1974115), (121, 1060475), (143, 897325), (169, 759275), (251, 511225), (275, 466609), (325, 394823), (605, 212095), (715, 179465), (845, 151855), (1255, 102245), (1573, 81575), (1859, 69025), (2761, 46475), (3025, 42419), (3263, 39325), (3575, 35893), (4225, 30371), (6275, 20449), (7865, 16315), (9295, 13805)]