20788500

素因数分解:

$2^2\times 3^1\times 5^3\times {\mathrm{13859}}^1$

素因数の和:13881

約数の個数: 48

約数和(自身を含む): 60540480

約数和(自身を除く): 39751980

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 50, 60, 75, 100, 125, 150, 250, 300, 375, 500, 750, 1500, 13859, 27718, 41577, 55436, 69295, 83154, 138590, 166308, 207885, 277180, 346475, 415770, 692950, 831540, 1039425, 1385900, 1732375, 2078850, 3464750, 4157700, 5197125, 6929500, 10394250, 20788500]

約数ペア:

[(1, 20788500), (2, 10394250), (3, 6929500), (4, 5197125), (5, 4157700), (6, 3464750), (10, 2078850), (12, 1732375), (15, 1385900), (20, 1039425), (25, 831540), (30, 692950), (50, 415770), (60, 346475), (75, 277180), (100, 207885), (125, 166308), (150, 138590), (250, 83154), (300, 69295), (375, 55436), (500, 41577), (750, 27718), (1500, 13859)]