28118825

素因数分解:

$5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3919}}^1$

素因数の和:3977

約数の個数: 24

約数和(自身を含む): 40830720

約数和(自身を除く): 12711895

約数列:

[1, 5, 7, 25, 35, 41, 175, 205, 287, 1025, 1435, 3919, 7175, 19595, 27433, 97975, 137165, 160679, 685825, 803395, 1124753, 4016975, 5623765, 28118825]

約数ペア:

[(1, 28118825), (5, 5623765), (7, 4016975), (25, 1124753), (35, 803395), (41, 685825), (175, 160679), (205, 137165), (287, 97975), (1025, 27433), (1435, 19595), (3919, 7175)]