19723000

素因数分解:

$2^3\times 5^3\times {\mathrm{11}}^2\times {\mathrm{163}}^1$

素因数の和:206

約数の個数: 96

約数和(自身を含む): 51040080

約数和(自身を除く): 31317080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 121, 125, 163, 200, 220, 242, 250, 275, 326, 440, 484, 500, 550, 605, 652, 815, 968, 1000, 1100, 1210, 1304, 1375, 1630, 1793, 2200, 2420, 2750, 3025, 3260, 3586, 4075, 4840, 5500, 6050, 6520, 7172, 8150, 8965, 11000, 12100, 14344, 15125, 16300, 17930, 19723, 20375, 24200, 30250, 32600, 35860, 39446, 40750, 44825, 60500, 71720, 78892, 81500, 89650, 98615, 121000, 157784, 163000, 179300, 197230, 224125, 358600, 394460, 448250, 493075, 788920, 896500, 986150, 1793000, 1972300, 2465375, 3944600, 4930750, 9861500, 19723000]

約数ペア:

[(1, 19723000), (2, 9861500), (4, 4930750), (5, 3944600), (8, 2465375), (10, 1972300), (11, 1793000), (20, 986150), (22, 896500), (25, 788920), (40, 493075), (44, 448250), (50, 394460), (55, 358600), (88, 224125), (100, 197230), (110, 179300), (121, 163000), (125, 157784), (163, 121000), (200, 98615), (220, 89650), (242, 81500), (250, 78892), (275, 71720), (326, 60500), (440, 44825), (484, 40750), (500, 39446), (550, 35860), (605, 32600), (652, 30250), (815, 24200), (968, 20375), (1000, 19723), (1100, 17930), (1210, 16300), (1304, 15125), (1375, 14344), (1630, 12100), (1793, 11000), (2200, 8965), (2420, 8150), (2750, 7172), (3025, 6520), (3260, 6050), (3586, 5500), (4075, 4840)]