20121455085

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1\times {\mathrm{5309}}^1$

素因数の和:5590

約数の個数: 64

約数和(自身を含む): 34684070400

約数和(自身を除く): 14562615315

約数列:

[1, 3, 5, 15, 17, 51, 85, 89, 167, 255, 267, 445, 501, 835, 1335, 1513, 2505, 2839, 4539, 5309, 7565, 8517, 14195, 14863, 15927, 22695, 26545, 42585, 44589, 74315, 79635, 90253, 222945, 252671, 270759, 451265, 472501, 758013, 886603, 1263355, 1353795, 1417503, 2362505, 2659809, 3790065, 4433015, 7087515, 8032517, 13299045, 15072251, 24097551, 40162585, 45216753, 75361255, 78907667, 120487755, 226083765, 236723001, 394538335, 1183615005, 1341430339, 4024291017, 6707151695, 20121455085]

約数ペア:

[(1, 20121455085), (3, 6707151695), (5, 4024291017), (15, 1341430339), (17, 1183615005), (51, 394538335), (85, 236723001), (89, 226083765), (167, 120487755), (255, 78907667), (267, 75361255), (445, 45216753), (501, 40162585), (835, 24097551), (1335, 15072251), (1513, 13299045), (2505, 8032517), (2839, 7087515), (4539, 4433015), (5309, 3790065), (7565, 2659809), (8517, 2362505), (14195, 1417503), (14863, 1353795), (15927, 1263355), (22695, 886603), (26545, 758013), (42585, 472501), (44589, 451265), (74315, 270759), (79635, 252671), (90253, 222945)]