972405

素因数分解:

$3^4\times 5^1\times 7^4$

素因数の和:45

約数の個数: 50

約数和(自身を含む): 2033526

約数和(自身を除く): 1061121

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 81, 105, 135, 147, 189, 245, 315, 343, 405, 441, 567, 735, 945, 1029, 1323, 1715, 2205, 2401, 2835, 3087, 3969, 5145, 6615, 7203, 9261, 12005, 15435, 19845, 21609, 27783, 36015, 46305, 64827, 108045, 138915, 194481, 324135, 972405]

約数ペア:

[(1, 972405), (3, 324135), (5, 194481), (7, 138915), (9, 108045), (15, 64827), (21, 46305), (27, 36015), (35, 27783), (45, 21609), (49, 19845), (63, 15435), (81, 12005), (105, 9261), (135, 7203), (147, 6615), (189, 5145), (245, 3969), (315, 3087), (343, 2835), (405, 2401), (441, 2205), (567, 1715), (735, 1323), (945, 1029)]