189447680

素因数分解:

$2^9\times 5^1\times {\mathrm{43}}^1\times {\mathrm{1721}}^1$

素因数の和:1787

約数の個数: 80

約数和(自身を含む): 465063984

約数和(自身を除く): 275616304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 43, 64, 80, 86, 128, 160, 172, 215, 256, 320, 344, 430, 512, 640, 688, 860, 1280, 1376, 1720, 1721, 2560, 2752, 3440, 3442, 5504, 6880, 6884, 8605, 11008, 13760, 13768, 17210, 22016, 27520, 27536, 34420, 55040, 55072, 68840, 74003, 110080, 110144, 137680, 148006, 220288, 275360, 296012, 370015, 440576, 550720, 592024, 740030, 881152, 1101440, 1184048, 1480060, 2202880, 2368096, 2960120, 4405760, 4736192, 5920240, 9472384, 11840480, 18944768, 23680960, 37889536, 47361920, 94723840, 189447680]

約数ペア:

[(1, 189447680), (2, 94723840), (4, 47361920), (5, 37889536), (8, 23680960), (10, 18944768), (16, 11840480), (20, 9472384), (32, 5920240), (40, 4736192), (43, 4405760), (64, 2960120), (80, 2368096), (86, 2202880), (128, 1480060), (160, 1184048), (172, 1101440), (215, 881152), (256, 740030), (320, 592024), (344, 550720), (430, 440576), (512, 370015), (640, 296012), (688, 275360), (860, 220288), (1280, 148006), (1376, 137680), (1720, 110144), (1721, 110080), (2560, 74003), (2752, 68840), (3440, 55072), (3442, 55040), (5504, 34420), (6880, 27536), (6884, 27520), (8605, 22016), (11008, 17210), (13760, 13768)]