2639385

素因数分解:

$3^4\times 5^1\times 7^3\times {\mathrm{19}}^1$

素因数の和:57

約数の個数: 80

約数和(自身を含む): 5808000

約数和(自身を除く): 3168615

約数列:

[1, 3, 5, 7, 9, 15, 19, 21, 27, 35, 45, 49, 57, 63, 81, 95, 105, 133, 135, 147, 171, 189, 245, 285, 315, 343, 399, 405, 441, 513, 567, 665, 735, 855, 931, 945, 1029, 1197, 1323, 1539, 1715, 1995, 2205, 2565, 2793, 2835, 3087, 3591, 3969, 4655, 5145, 5985, 6517, 6615, 7695, 8379, 9261, 10773, 13965, 15435, 17955, 19551, 19845, 25137, 27783, 32585, 41895, 46305, 53865, 58653, 75411, 97755, 125685, 138915, 175959, 293265, 377055, 527877, 879795, 2639385]

約数ペア:

[(1, 2639385), (3, 879795), (5, 527877), (7, 377055), (9, 293265), (15, 175959), (19, 138915), (21, 125685), (27, 97755), (35, 75411), (45, 58653), (49, 53865), (57, 46305), (63, 41895), (81, 32585), (95, 27783), (105, 25137), (133, 19845), (135, 19551), (147, 17955), (171, 15435), (189, 13965), (245, 10773), (285, 9261), (315, 8379), (343, 7695), (399, 6615), (405, 6517), (441, 5985), (513, 5145), (567, 4655), (665, 3969), (735, 3591), (855, 3087), (931, 2835), (945, 2793), (1029, 2565), (1197, 2205), (1323, 1995), (1539, 1715)]