18238425

素因数分解:

$3^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 32081280

約数和(自身を除く): 13842855

約数列:

[1, 3, 5, 15, 23, 25, 69, 75, 97, 109, 115, 291, 327, 345, 485, 545, 575, 1455, 1635, 1725, 2231, 2425, 2507, 2725, 6693, 7275, 7521, 8175, 10573, 11155, 12535, 31719, 33465, 37605, 52865, 55775, 62675, 158595, 167325, 188025, 243179, 264325, 729537, 792975, 1215895, 3647685, 6079475, 18238425]

約数ペア:

[(1, 18238425), (3, 6079475), (5, 3647685), (15, 1215895), (23, 792975), (25, 729537), (69, 264325), (75, 243179), (97, 188025), (109, 167325), (115, 158595), (291, 62675), (327, 55775), (345, 52865), (485, 37605), (545, 33465), (575, 31719), (1455, 12535), (1635, 11155), (1725, 10573), (2231, 8175), (2425, 7521), (2507, 7275), (2725, 6693)]