28687275

素因数分解:

$3^2\times 5^2\times {\mathrm{59}}^1\times {\mathrm{2161}}^1$

素因数の和:2236

約数の個数: 36

約数和(自身を含む): 52277160

約数和(自身を除く): 23589885

約数列:

[1, 3, 5, 9, 15, 25, 45, 59, 75, 177, 225, 295, 531, 885, 1475, 2161, 2655, 4425, 6483, 10805, 13275, 19449, 32415, 54025, 97245, 127499, 162075, 382497, 486225, 637495, 1147491, 1912485, 3187475, 5737455, 9562425, 28687275]

約数ペア:

[(1, 28687275), (3, 9562425), (5, 5737455), (9, 3187475), (15, 1912485), (25, 1147491), (45, 637495), (59, 486225), (75, 382497), (177, 162075), (225, 127499), (295, 97245), (531, 54025), (885, 32415), (1475, 19449), (2161, 13275), (2655, 10805), (4425, 6483)]