40971520

素因数分解:

$2^8\times 5^1\times {\mathrm{32009}}^1$

素因数の和:32030

約数の個数: 36

約数和(自身を含む): 98142660

約数和(自身を除く): 57171140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 32009, 64018, 128036, 160045, 256072, 320090, 512144, 640180, 1024288, 1280360, 2048576, 2560720, 4097152, 5121440, 8194304, 10242880, 20485760, 40971520]

約数ペア:

[(1, 40971520), (2, 20485760), (4, 10242880), (5, 8194304), (8, 5121440), (10, 4097152), (16, 2560720), (20, 2048576), (32, 1280360), (40, 1024288), (64, 640180), (80, 512144), (128, 320090), (160, 256072), (256, 160045), (320, 128036), (640, 64018), (1280, 32009)]