19892320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{17761}}^1$

素因数の和:17783

約数の個数: 48

約数和(自身を含む): 53712288

約数和(自身を除く): 33819968

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 17761, 35522, 71044, 88805, 124327, 142088, 177610, 248654, 284176, 355220, 497308, 568352, 621635, 710440, 994616, 1243270, 1420880, 1989232, 2486540, 2841760, 3978464, 4973080, 9946160, 19892320]

約数ペア:

[(1, 19892320), (2, 9946160), (4, 4973080), (5, 3978464), (7, 2841760), (8, 2486540), (10, 1989232), (14, 1420880), (16, 1243270), (20, 994616), (28, 710440), (32, 621635), (35, 568352), (40, 497308), (56, 355220), (70, 284176), (80, 248654), (112, 177610), (140, 142088), (160, 124327), (224, 88805), (280, 71044), (560, 35522), (1120, 17761)]