1231305

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1$

素因数の和:157

約数の個数: 32

約数和(自身を含む): 2128896

約数和(自身を除く): 897591

約数列:

[1, 3, 5, 15, 23, 43, 69, 83, 115, 129, 215, 249, 345, 415, 645, 989, 1245, 1909, 2967, 3569, 4945, 5727, 9545, 10707, 14835, 17845, 28635, 53535, 82087, 246261, 410435, 1231305]

約数ペア:

[(1, 1231305), (3, 410435), (5, 246261), (15, 82087), (23, 53535), (43, 28635), (69, 17845), (83, 14835), (115, 10707), (129, 9545), (215, 5727), (249, 4945), (345, 3569), (415, 2967), (645, 1909), (989, 1245)]