20312505

素因数分解:

$3^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{397}}^1$

素因数の和:790

約数の個数: 32

約数和(自身を含む): 36297600

約数和(自身を除く): 15985095

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 379, 397, 1137, 1191, 1895, 1985, 3411, 3573, 5685, 5955, 10233, 10719, 17055, 17865, 51165, 53595, 150463, 451389, 752315, 1354167, 2256945, 4062501, 6770835, 20312505]

約数ペア:

[(1, 20312505), (3, 6770835), (5, 4062501), (9, 2256945), (15, 1354167), (27, 752315), (45, 451389), (135, 150463), (379, 53595), (397, 51165), (1137, 17865), (1191, 17055), (1895, 10719), (1985, 10233), (3411, 5955), (3573, 5685)]