980480

素因数分解:

$2^9\times 5^1\times {\mathrm{383}}^1$

素因数の和:406

約数の個数: 40

約数和(自身を含む): 2356992

約数和(自身を除く): 1376512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 383, 512, 640, 766, 1280, 1532, 1915, 2560, 3064, 3830, 6128, 7660, 12256, 15320, 24512, 30640, 49024, 61280, 98048, 122560, 196096, 245120, 490240, 980480]

約数ペア:

[(1, 980480), (2, 490240), (4, 245120), (5, 196096), (8, 122560), (10, 98048), (16, 61280), (20, 49024), (32, 30640), (40, 24512), (64, 15320), (80, 12256), (128, 7660), (160, 6128), (256, 3830), (320, 3064), (383, 2560), (512, 1915), (640, 1532), (766, 1280)]