1611520

素因数分解:

$2^8\times 5^1\times {\mathrm{1259}}^1$

素因数の和:1280

約数の個数: 36

約数和(自身を含む): 3863160

約数和(自身を除く): 2251640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1259, 1280, 2518, 5036, 6295, 10072, 12590, 20144, 25180, 40288, 50360, 80576, 100720, 161152, 201440, 322304, 402880, 805760, 1611520]

約数ペア:

[(1, 1611520), (2, 805760), (4, 402880), (5, 322304), (8, 201440), (10, 161152), (16, 100720), (20, 80576), (32, 50360), (40, 40288), (64, 25180), (80, 20144), (128, 12590), (160, 10072), (256, 6295), (320, 5036), (640, 2518), (1259, 1280)]