20772800

素因数分解:

$2^6\times 5^2\times {\mathrm{12983}}^1$

素因数の和:13005

約数の個数: 42

約数和(自身を含む): 51118008

約数和(自身を除く): 30345208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 160, 200, 320, 400, 800, 1600, 12983, 25966, 51932, 64915, 103864, 129830, 207728, 259660, 324575, 415456, 519320, 649150, 830912, 1038640, 1298300, 2077280, 2596600, 4154560, 5193200, 10386400, 20772800]

約数ペア:

[(1, 20772800), (2, 10386400), (4, 5193200), (5, 4154560), (8, 2596600), (10, 2077280), (16, 1298300), (20, 1038640), (25, 830912), (32, 649150), (40, 519320), (50, 415456), (64, 324575), (80, 259660), (100, 207728), (160, 129830), (200, 103864), (320, 64915), (400, 51932), (800, 25966), (1600, 12983)]