28960000

素因数分解:

$2^8\times 5^4\times {\mathrm{181}}^1$

素因数の和:217

約数の個数: 90

約数和(自身を含む): 72634562

約数和(自身を除く): 43674562

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 181, 200, 250, 256, 320, 362, 400, 500, 625, 640, 724, 800, 905, 1000, 1250, 1280, 1448, 1600, 1810, 2000, 2500, 2896, 3200, 3620, 4000, 4525, 5000, 5792, 6400, 7240, 8000, 9050, 10000, 11584, 14480, 16000, 18100, 20000, 22625, 23168, 28960, 32000, 36200, 40000, 45250, 46336, 57920, 72400, 80000, 90500, 113125, 115840, 144800, 160000, 181000, 226250, 231680, 289600, 362000, 452500, 579200, 724000, 905000, 1158400, 1448000, 1810000, 2896000, 3620000, 5792000, 7240000, 14480000, 28960000]

約数ペア:

[(1, 28960000), (2, 14480000), (4, 7240000), (5, 5792000), (8, 3620000), (10, 2896000), (16, 1810000), (20, 1448000), (25, 1158400), (32, 905000), (40, 724000), (50, 579200), (64, 452500), (80, 362000), (100, 289600), (125, 231680), (128, 226250), (160, 181000), (181, 160000), (200, 144800), (250, 115840), (256, 113125), (320, 90500), (362, 80000), (400, 72400), (500, 57920), (625, 46336), (640, 45250), (724, 40000), (800, 36200), (905, 32000), (1000, 28960), (1250, 23168), (1280, 22625), (1448, 20000), (1600, 18100), (1810, 16000), (2000, 14480), (2500, 11584), (2896, 10000), (3200, 9050), (3620, 8000), (4000, 7240), (4525, 6400), (5000, 5792)]