1305801

素因数分解:

$3^4\times 7^3\times {\mathrm{47}}^1$

素因数の和:80

約数の個数: 40

約数和(自身を含む): 2323200

約数和(自身を除く): 1017399

約数列:

[1, 3, 7, 9, 21, 27, 47, 49, 63, 81, 141, 147, 189, 329, 343, 423, 441, 567, 987, 1029, 1269, 1323, 2303, 2961, 3087, 3807, 3969, 6909, 8883, 9261, 16121, 20727, 26649, 27783, 48363, 62181, 145089, 186543, 435267, 1305801]

約数ペア:

[(1, 1305801), (3, 435267), (7, 186543), (9, 145089), (21, 62181), (27, 48363), (47, 27783), (49, 26649), (63, 20727), (81, 16121), (141, 9261), (147, 8883), (189, 6909), (329, 3969), (343, 3807), (423, 3087), (441, 2961), (567, 2303), (987, 1323), (1029, 1269)]