402880

素因数分解:

$2^6\times 5^1\times {\mathrm{1259}}^1$

素因数の和:1276

約数の個数: 28

約数和(自身を含む): 960120

約数和(自身を除く): 557240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1259, 2518, 5036, 6295, 10072, 12590, 20144, 25180, 40288, 50360, 80576, 100720, 201440, 402880]

約数ペア:

[(1, 402880), (2, 201440), (4, 100720), (5, 80576), (8, 50360), (10, 40288), (16, 25180), (20, 20144), (32, 12590), (40, 10072), (64, 6295), (80, 5036), (160, 2518), (320, 1259)]