81973455

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{1019}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 136304640

約数和(自身を除く): 54331185

約数列:

[1, 3, 5, 15, 31, 93, 155, 173, 465, 519, 865, 1019, 2595, 3057, 5095, 5363, 15285, 16089, 26815, 31589, 80445, 94767, 157945, 176287, 473835, 528861, 881435, 2644305, 5464897, 16394691, 27324485, 81973455]

約数ペア:

[(1, 81973455), (3, 27324485), (5, 16394691), (15, 5464897), (31, 2644305), (93, 881435), (155, 528861), (173, 473835), (465, 176287), (519, 157945), (865, 94767), (1019, 80445), (2595, 31589), (3057, 26815), (5095, 16089), (5363, 15285)]