28511975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{919}}^1$

素因数の和:1019

約数の個数: 24

約数和(自身を含む): 37988640

約数和(自身を除く): 9476665

約数列:

[1, 5, 17, 25, 73, 85, 365, 425, 919, 1241, 1825, 4595, 6205, 15623, 22975, 31025, 67087, 78115, 335435, 390575, 1140479, 1677175, 5702395, 28511975]

約数ペア:

[(1, 28511975), (5, 5702395), (17, 1677175), (25, 1140479), (73, 390575), (85, 335435), (365, 78115), (425, 67087), (919, 31025), (1241, 22975), (1825, 15623), (4595, 6205)]