17981305

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{269}}^1\times {\mathrm{461}}^1$

素因数の和:764

約数の個数: 16

約数和(自身を含む): 22453200

約数和(自身を除く): 4471895

約数列:

[1, 5, 29, 145, 269, 461, 1345, 2305, 7801, 13369, 39005, 66845, 124009, 620045, 3596261, 17981305]

約数ペア:

[(1, 17981305), (5, 3596261), (29, 620045), (145, 124009), (269, 66845), (461, 39005), (1345, 13369), (2305, 7801)]