1636480

素因数分解:

$2^7\times 5^1\times {\mathrm{2557}}^1$

素因数の和:2576

約数の個数: 32

約数和(自身を含む): 3913740

約数和(自身を除く): 2277260

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 2557, 5114, 10228, 12785, 20456, 25570, 40912, 51140, 81824, 102280, 163648, 204560, 327296, 409120, 818240, 1636480]

約数ペア:

[(1, 1636480), (2, 818240), (4, 409120), (5, 327296), (8, 204560), (10, 163648), (16, 102280), (20, 81824), (32, 51140), (40, 40912), (64, 25570), (80, 20456), (128, 12785), (160, 10228), (320, 5114), (640, 2557)]