28520975

素因数分解:

$5^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{2063}}^1$

素因数の和:2159

約数の個数: 24

約数和(自身を含む): 40949760

約数和(自身を除く): 12428785

約数列:

[1, 5, 7, 25, 35, 79, 175, 395, 553, 1975, 2063, 2765, 10315, 13825, 14441, 51575, 72205, 162977, 361025, 814885, 1140839, 4074425, 5704195, 28520975]

約数ペア:

[(1, 28520975), (5, 5704195), (7, 4074425), (25, 1140839), (35, 814885), (79, 361025), (175, 162977), (395, 72205), (553, 51575), (1975, 14441), (2063, 13825), (2765, 10315)]