19966320

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2521}}^1$

素因数の和:2551

約数の個数: 120

約数和(自身を含む): 73178352

約数和(自身を除く): 53212032

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 48, 55, 60, 66, 72, 80, 88, 90, 99, 110, 120, 132, 144, 165, 176, 180, 198, 220, 240, 264, 330, 360, 396, 440, 495, 528, 660, 720, 792, 880, 990, 1320, 1584, 1980, 2521, 2640, 3960, 5042, 7563, 7920, 10084, 12605, 15126, 20168, 22689, 25210, 27731, 30252, 37815, 40336, 45378, 50420, 55462, 60504, 75630, 83193, 90756, 100840, 110924, 113445, 121008, 138655, 151260, 166386, 181512, 201680, 221848, 226890, 249579, 277310, 302520, 332772, 363024, 415965, 443696, 453780, 499158, 554620, 605040, 665544, 831930, 907560, 998316, 1109240, 1247895, 1331088, 1663860, 1815120, 1996632, 2218480, 2495790, 3327720, 3993264, 4991580, 6655440, 9983160, 19966320]

約数ペア:

[(1, 19966320), (2, 9983160), (3, 6655440), (4, 4991580), (5, 3993264), (6, 3327720), (8, 2495790), (9, 2218480), (10, 1996632), (11, 1815120), (12, 1663860), (15, 1331088), (16, 1247895), (18, 1109240), (20, 998316), (22, 907560), (24, 831930), (30, 665544), (33, 605040), (36, 554620), (40, 499158), (44, 453780), (45, 443696), (48, 415965), (55, 363024), (60, 332772), (66, 302520), (72, 277310), (80, 249579), (88, 226890), (90, 221848), (99, 201680), (110, 181512), (120, 166386), (132, 151260), (144, 138655), (165, 121008), (176, 113445), (180, 110924), (198, 100840), (220, 90756), (240, 83193), (264, 75630), (330, 60504), (360, 55462), (396, 50420), (440, 45378), (495, 40336), (528, 37815), (660, 30252), (720, 27731), (792, 25210), (880, 22689), (990, 20168), (1320, 15126), (1584, 12605), (1980, 10084), (2521, 7920), (2640, 7563), (3960, 5042)]