15721537545

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{85903}}^1$

素因数の和:86011

約数の個数: 72

約数和(自身を含む): 32082051456

約数和(自身を除く): 16360513911

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 83, 105, 147, 245, 249, 315, 415, 441, 581, 735, 747, 1245, 1743, 2205, 2905, 3735, 4067, 5229, 8715, 12201, 20335, 26145, 36603, 61005, 85903, 183015, 257709, 429515, 601321, 773127, 1288545, 1803963, 3006605, 3865635, 4209247, 5411889, 7129949, 9019815, 12627741, 21046235, 21389847, 27059445, 35649745, 37883223, 49909643, 63138705, 64169541, 106949235, 149728929, 189416115, 249548215, 320847705, 349367501, 449186787, 748644645, 1048102503, 1746837505, 2245933935, 3144307509, 5240512515, 15721537545]

約数ペア:

[(1, 15721537545), (3, 5240512515), (5, 3144307509), (7, 2245933935), (9, 1746837505), (15, 1048102503), (21, 748644645), (35, 449186787), (45, 349367501), (49, 320847705), (63, 249548215), (83, 189416115), (105, 149728929), (147, 106949235), (245, 64169541), (249, 63138705), (315, 49909643), (415, 37883223), (441, 35649745), (581, 27059445), (735, 21389847), (747, 21046235), (1245, 12627741), (1743, 9019815), (2205, 7129949), (2905, 5411889), (3735, 4209247), (4067, 3865635), (5229, 3006605), (8715, 1803963), (12201, 1288545), (20335, 773127), (26145, 601321), (36603, 429515), (61005, 257709), (85903, 183015)]