1987840

素因数分解:

$2^8\times 5^1\times {\mathrm{1553}}^1$

素因数の和:1574

約数の個数: 36

約数和(自身を含む): 4764564

約数和(自身を除く): 2776724

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 1553, 3106, 6212, 7765, 12424, 15530, 24848, 31060, 49696, 62120, 99392, 124240, 198784, 248480, 397568, 496960, 993920, 1987840]

約数ペア:

[(1, 1987840), (2, 993920), (4, 496960), (5, 397568), (8, 248480), (10, 198784), (16, 124240), (20, 99392), (32, 62120), (40, 49696), (64, 31060), (80, 24848), (128, 15530), (160, 12424), (256, 7765), (320, 6212), (640, 3106), (1280, 1553)]