28480000

素因数分解:

$2^9\times 5^4\times {\mathrm{89}}^1$

素因数の和:127

約数の個数: 100

約数和(自身を含む): 71906670

約数和(自身を除く): 43426670

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 89, 100, 125, 128, 160, 178, 200, 250, 256, 320, 356, 400, 445, 500, 512, 625, 640, 712, 800, 890, 1000, 1250, 1280, 1424, 1600, 1780, 2000, 2225, 2500, 2560, 2848, 3200, 3560, 4000, 4450, 5000, 5696, 6400, 7120, 8000, 8900, 10000, 11125, 11392, 12800, 14240, 16000, 17800, 20000, 22250, 22784, 28480, 32000, 35600, 40000, 44500, 45568, 55625, 56960, 64000, 71200, 80000, 89000, 111250, 113920, 142400, 160000, 178000, 222500, 227840, 284800, 320000, 356000, 445000, 569600, 712000, 890000, 1139200, 1424000, 1780000, 2848000, 3560000, 5696000, 7120000, 14240000, 28480000]

約数ペア:

[(1, 28480000), (2, 14240000), (4, 7120000), (5, 5696000), (8, 3560000), (10, 2848000), (16, 1780000), (20, 1424000), (25, 1139200), (32, 890000), (40, 712000), (50, 569600), (64, 445000), (80, 356000), (89, 320000), (100, 284800), (125, 227840), (128, 222500), (160, 178000), (178, 160000), (200, 142400), (250, 113920), (256, 111250), (320, 89000), (356, 80000), (400, 71200), (445, 64000), (500, 56960), (512, 55625), (625, 45568), (640, 44500), (712, 40000), (800, 35600), (890, 32000), (1000, 28480), (1250, 22784), (1280, 22250), (1424, 20000), (1600, 17800), (1780, 16000), (2000, 14240), (2225, 12800), (2500, 11392), (2560, 11125), (2848, 10000), (3200, 8900), (3560, 8000), (4000, 7120), (4450, 6400), (5000, 5696)]