31328000

素因数分解:

$2^8\times 5^3\times {\mathrm{11}}^1\times {\mathrm{89}}^1$

素因数の和:131

約数の個数: 144

約数和(自身を含む): 86093280

約数和(自身を除く): 54765280

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 64, 80, 88, 89, 100, 110, 125, 128, 160, 176, 178, 200, 220, 250, 256, 275, 320, 352, 356, 400, 440, 445, 500, 550, 640, 704, 712, 800, 880, 890, 979, 1000, 1100, 1280, 1375, 1408, 1424, 1600, 1760, 1780, 1958, 2000, 2200, 2225, 2750, 2816, 2848, 3200, 3520, 3560, 3916, 4000, 4400, 4450, 4895, 5500, 5696, 6400, 7040, 7120, 7832, 8000, 8800, 8900, 9790, 11000, 11125, 11392, 14080, 14240, 15664, 16000, 17600, 17800, 19580, 22000, 22250, 22784, 24475, 28480, 31328, 32000, 35200, 35600, 39160, 44000, 44500, 48950, 56960, 62656, 70400, 71200, 78320, 88000, 89000, 97900, 113920, 122375, 125312, 142400, 156640, 176000, 178000, 195800, 244750, 250624, 284800, 313280, 352000, 356000, 391600, 489500, 569600, 626560, 712000, 783200, 979000, 1253120, 1424000, 1566400, 1958000, 2848000, 3132800, 3916000, 6265600, 7832000, 15664000, 31328000]

約数ペア:

[(1, 31328000), (2, 15664000), (4, 7832000), (5, 6265600), (8, 3916000), (10, 3132800), (11, 2848000), (16, 1958000), (20, 1566400), (22, 1424000), (25, 1253120), (32, 979000), (40, 783200), (44, 712000), (50, 626560), (55, 569600), (64, 489500), (80, 391600), (88, 356000), (89, 352000), (100, 313280), (110, 284800), (125, 250624), (128, 244750), (160, 195800), (176, 178000), (178, 176000), (200, 156640), (220, 142400), (250, 125312), (256, 122375), (275, 113920), (320, 97900), (352, 89000), (356, 88000), (400, 78320), (440, 71200), (445, 70400), (500, 62656), (550, 56960), (640, 48950), (704, 44500), (712, 44000), (800, 39160), (880, 35600), (890, 35200), (979, 32000), (1000, 31328), (1100, 28480), (1280, 24475), (1375, 22784), (1408, 22250), (1424, 22000), (1600, 19580), (1760, 17800), (1780, 17600), (1958, 16000), (2000, 15664), (2200, 14240), (2225, 14080), (2750, 11392), (2816, 11125), (2848, 11000), (3200, 9790), (3520, 8900), (3560, 8800), (3916, 8000), (4000, 7832), (4400, 7120), (4450, 7040), (4895, 6400), (5500, 5696)]