28819925

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{907}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 37830912

約数和(自身を除く): 9010987

約数列:

[1, 5, 25, 31, 41, 155, 205, 775, 907, 1025, 1271, 4535, 6355, 22675, 28117, 31775, 37187, 140585, 185935, 702925, 929675, 1152797, 5763985, 28819925]

約数ペア:

[(1, 28819925), (5, 5763985), (25, 1152797), (31, 929675), (41, 702925), (155, 185935), (205, 140585), (775, 37187), (907, 31775), (1025, 28117), (1271, 22675), (4535, 6355)]