1121680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2003}}^1$

素因数の和:2023

約数の個数: 40

約数和(自身を含む): 2981952

約数和(自身を除く): 1860272

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2003, 4006, 8012, 10015, 14021, 16024, 20030, 28042, 32048, 40060, 56084, 70105, 80120, 112168, 140210, 160240, 224336, 280420, 560840, 1121680]

約数ペア:

[(1, 1121680), (2, 560840), (4, 280420), (5, 224336), (7, 160240), (8, 140210), (10, 112168), (14, 80120), (16, 70105), (20, 56084), (28, 40060), (35, 32048), (40, 28042), (56, 20030), (70, 16024), (80, 14021), (112, 10015), (140, 8012), (280, 4006), (560, 2003)]