291212145

素因数分解:

$3^3\times 5^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 637440000

約数和(自身を除く): 346227855

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 49, 57, 63, 95, 105, 133, 135, 147, 171, 189, 245, 285, 315, 331, 343, 399, 441, 513, 665, 735, 855, 931, 945, 993, 1029, 1197, 1323, 1655, 1715, 1995, 2205, 2317, 2565, 2793, 2979, 3087, 3591, 4655, 4965, 5145, 5985, 6289, 6517, 6615, 6951, 8379, 8937, 9261, 11585, 13965, 14895, 15435, 16219, 17955, 18867, 19551, 20853, 25137, 31445, 32585, 34755, 41895, 44023, 44685, 46305, 48657, 56601, 58653, 62559, 81095, 94335, 97755, 104265, 113533, 125685, 132069, 145971, 169803, 175959, 220115, 243285, 283005, 293265, 308161, 312795, 340599, 396207, 437913, 567665, 660345, 729855, 849015, 879795, 924483, 1021797, 1188621, 1540805, 1702995, 1981035, 2157127, 2189565, 2773449, 3065391, 4622415, 5108985, 5943105, 6471381, 8320347, 10785635, 13867245, 15326955, 19414143, 32356905, 41601735, 58242429, 97070715, 291212145]

約数ペア:

[(1, 291212145), (3, 97070715), (5, 58242429), (7, 41601735), (9, 32356905), (15, 19414143), (19, 15326955), (21, 13867245), (27, 10785635), (35, 8320347), (45, 6471381), (49, 5943105), (57, 5108985), (63, 4622415), (95, 3065391), (105, 2773449), (133, 2189565), (135, 2157127), (147, 1981035), (171, 1702995), (189, 1540805), (245, 1188621), (285, 1021797), (315, 924483), (331, 879795), (343, 849015), (399, 729855), (441, 660345), (513, 567665), (665, 437913), (735, 396207), (855, 340599), (931, 312795), (945, 308161), (993, 293265), (1029, 283005), (1197, 243285), (1323, 220115), (1655, 175959), (1715, 169803), (1995, 145971), (2205, 132069), (2317, 125685), (2565, 113533), (2793, 104265), (2979, 97755), (3087, 94335), (3591, 81095), (4655, 62559), (4965, 58653), (5145, 56601), (5985, 48657), (6289, 46305), (6517, 44685), (6615, 44023), (6951, 41895), (8379, 34755), (8937, 32585), (9261, 31445), (11585, 25137), (13965, 20853), (14895, 19551), (15435, 18867), (16219, 17955)]