20571900

素因数分解:

$2^2\times 3^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{1459}}^1$

素因数の和:1523

約数の個数: 72

約数和(自身を含む): 60829440

約数和(自身を除く): 40257540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 25, 30, 47, 50, 60, 75, 94, 100, 141, 150, 188, 235, 282, 300, 470, 564, 705, 940, 1175, 1410, 1459, 2350, 2820, 2918, 3525, 4377, 4700, 5836, 7050, 7295, 8754, 14100, 14590, 17508, 21885, 29180, 36475, 43770, 68573, 72950, 87540, 109425, 137146, 145900, 205719, 218850, 274292, 342865, 411438, 437700, 685730, 822876, 1028595, 1371460, 1714325, 2057190, 3428650, 4114380, 5142975, 6857300, 10285950, 20571900]

約数ペア:

[(1, 20571900), (2, 10285950), (3, 6857300), (4, 5142975), (5, 4114380), (6, 3428650), (10, 2057190), (12, 1714325), (15, 1371460), (20, 1028595), (25, 822876), (30, 685730), (47, 437700), (50, 411438), (60, 342865), (75, 274292), (94, 218850), (100, 205719), (141, 145900), (150, 137146), (188, 109425), (235, 87540), (282, 72950), (300, 68573), (470, 43770), (564, 36475), (705, 29180), (940, 21885), (1175, 17508), (1410, 14590), (1459, 14100), (2350, 8754), (2820, 7295), (2918, 7050), (3525, 5836), (4377, 4700)]