20303395

素因数分解:

$5^1\times 7^2\times {\mathrm{79}}^1\times {\mathrm{1049}}^1$

素因数の和:1147

約数の個数: 24

約数和(自身を含む): 28728000

約数和(自身を除く): 8424605

約数列:

[1, 5, 7, 35, 49, 79, 245, 395, 553, 1049, 2765, 3871, 5245, 7343, 19355, 36715, 51401, 82871, 257005, 414355, 580097, 2900485, 4060679, 20303395]

約数ペア:

[(1, 20303395), (5, 4060679), (7, 2900485), (35, 580097), (49, 414355), (79, 257005), (245, 82871), (395, 51401), (553, 36715), (1049, 19355), (2765, 7343), (3871, 5245)]