1989715

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{4373}}^1$

素因数の和:4398

約数の個数: 16

約数和(自身を含む): 2939328

約数和(自身を除く): 949613

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 4373, 21865, 30611, 56849, 153055, 284245, 397943, 1989715]

約数ペア:

[(1, 1989715), (5, 397943), (7, 284245), (13, 153055), (35, 56849), (65, 30611), (91, 21865), (455, 4373)]