31891145

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{73}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 46801152

約数和(自身を除く): 14910007

約数列:

[1, 5, 11, 13, 47, 55, 65, 73, 143, 169, 235, 365, 517, 611, 715, 803, 845, 949, 1859, 2585, 3055, 3431, 4015, 4745, 6721, 7943, 9295, 10439, 12337, 17155, 33605, 37741, 39715, 44603, 52195, 61685, 87373, 135707, 188705, 223015, 436865, 490633, 579839, 678535, 2453165, 2899195, 6378229, 31891145]

約数ペア:

[(1, 31891145), (5, 6378229), (11, 2899195), (13, 2453165), (47, 678535), (55, 579839), (65, 490633), (73, 436865), (143, 223015), (169, 188705), (235, 135707), (365, 87373), (517, 61685), (611, 52195), (715, 44603), (803, 39715), (845, 37741), (949, 33605), (1859, 17155), (2585, 12337), (3055, 10439), (3431, 9295), (4015, 7943), (4745, 6721)]