28371245

素因数分解:

$5^1\times 7^3\times {\mathrm{71}}^1\times {\mathrm{233}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 12063955

約数列:

[1, 5, 7, 35, 49, 71, 233, 245, 343, 355, 497, 1165, 1631, 1715, 2485, 3479, 8155, 11417, 16543, 17395, 24353, 57085, 79919, 82715, 115801, 121765, 399595, 579005, 810607, 4053035, 5674249, 28371245]

約数ペア:

[(1, 28371245), (5, 5674249), (7, 4053035), (35, 810607), (49, 579005), (71, 399595), (233, 121765), (245, 115801), (343, 82715), (355, 79919), (497, 57085), (1165, 24353), (1631, 17395), (1715, 16543), (2485, 11417), (3479, 8155)]