81844400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:148

約数の個数: 180

約数和(自身を含む): 230063400

約数和(自身を除く): 148219000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 25, 38, 40, 44, 50, 55, 76, 80, 88, 89, 95, 100, 110, 121, 152, 176, 178, 190, 200, 209, 220, 242, 275, 304, 356, 380, 400, 418, 440, 445, 475, 484, 550, 605, 712, 760, 836, 880, 890, 950, 968, 979, 1045, 1100, 1210, 1424, 1520, 1672, 1691, 1780, 1900, 1936, 1958, 2090, 2200, 2225, 2299, 2420, 3025, 3344, 3382, 3560, 3800, 3916, 4180, 4400, 4450, 4598, 4840, 4895, 5225, 6050, 6764, 7120, 7600, 7832, 8360, 8455, 8900, 9196, 9680, 9790, 10450, 10769, 11495, 12100, 13528, 15664, 16720, 16910, 17800, 18392, 18601, 19580, 20900, 21538, 22990, 24200, 24475, 27056, 33820, 35600, 36784, 37202, 39160, 41800, 42275, 43076, 45980, 48400, 48950, 53845, 57475, 67640, 74404, 78320, 83600, 84550, 86152, 91960, 93005, 97900, 107690, 114950, 135280, 148808, 169100, 172304, 183920, 186010, 195800, 204611, 215380, 229900, 269225, 297616, 338200, 372020, 391600, 409222, 430760, 459800, 465025, 538450, 676400, 744040, 818444, 861520, 919600, 930050, 1023055, 1076900, 1488080, 1636888, 1860100, 2046110, 2153800, 3273776, 3720200, 4092220, 4307600, 5115275, 7440400, 8184440, 10230550, 16368880, 20461100, 40922200, 81844400]

約数ペア:

[(1, 81844400), (2, 40922200), (4, 20461100), (5, 16368880), (8, 10230550), (10, 8184440), (11, 7440400), (16, 5115275), (19, 4307600), (20, 4092220), (22, 3720200), (25, 3273776), (38, 2153800), (40, 2046110), (44, 1860100), (50, 1636888), (55, 1488080), (76, 1076900), (80, 1023055), (88, 930050), (89, 919600), (95, 861520), (100, 818444), (110, 744040), (121, 676400), (152, 538450), (176, 465025), (178, 459800), (190, 430760), (200, 409222), (209, 391600), (220, 372020), (242, 338200), (275, 297616), (304, 269225), (356, 229900), (380, 215380), (400, 204611), (418, 195800), (440, 186010), (445, 183920), (475, 172304), (484, 169100), (550, 148808), (605, 135280), (712, 114950), (760, 107690), (836, 97900), (880, 93005), (890, 91960), (950, 86152), (968, 84550), (979, 83600), (1045, 78320), (1100, 74404), (1210, 67640), (1424, 57475), (1520, 53845), (1672, 48950), (1691, 48400), (1780, 45980), (1900, 43076), (1936, 42275), (1958, 41800), (2090, 39160), (2200, 37202), (2225, 36784), (2299, 35600), (2420, 33820), (3025, 27056), (3344, 24475), (3382, 24200), (3560, 22990), (3800, 21538), (3916, 20900), (4180, 19580), (4400, 18601), (4450, 18392), (4598, 17800), (4840, 16910), (4895, 16720), (5225, 15664), (6050, 13528), (6764, 12100), (7120, 11495), (7600, 10769), (7832, 10450), (8360, 9790), (8455, 9680), (8900, 9196)]