28538755

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{907}}^1$

素因数の和:979

約数の個数: 32

約数和(自身を含む): 41840640

約数和(自身を除く): 13301885

約数列:

[1, 5, 7, 29, 31, 35, 145, 155, 203, 217, 899, 907, 1015, 1085, 4495, 4535, 6293, 6349, 26303, 28117, 31465, 31745, 131515, 140585, 184121, 196819, 815393, 920605, 984095, 4076965, 5707751, 28538755]

約数ペア:

[(1, 28538755), (5, 5707751), (7, 4076965), (29, 984095), (31, 920605), (35, 815393), (145, 196819), (155, 184121), (203, 140585), (217, 131515), (899, 31745), (907, 31465), (1015, 28117), (1085, 26303), (4495, 6349), (4535, 6293)]