21076480

素因数分解:

$2^9\times 5^1\times {\mathrm{8233}}^1$

素因数の和:8256

約数の個数: 40

約数和(自身を含む): 50540292

約数和(自身を除く): 29463812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 8233, 16466, 32932, 41165, 65864, 82330, 131728, 164660, 263456, 329320, 526912, 658640, 1053824, 1317280, 2107648, 2634560, 4215296, 5269120, 10538240, 21076480]

約数ペア:

[(1, 21076480), (2, 10538240), (4, 5269120), (5, 4215296), (8, 2634560), (10, 2107648), (16, 1317280), (20, 1053824), (32, 658640), (40, 526912), (64, 329320), (80, 263456), (128, 164660), (160, 131728), (256, 82330), (320, 65864), (512, 41165), (640, 32932), (1280, 16466), (2560, 8233)]