128629120

素因数分解:

$2^7\times 5^1\times {\mathrm{200983}}^1$

素因数の和:201002

約数の個数: 32

約数和(自身を含む): 307505520

約数和(自身を除く): 178876400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 200983, 401966, 803932, 1004915, 1607864, 2009830, 3215728, 4019660, 6431456, 8039320, 12862912, 16078640, 25725824, 32157280, 64314560, 128629120]

約数ペア:

[(1, 128629120), (2, 64314560), (4, 32157280), (5, 25725824), (8, 16078640), (10, 12862912), (16, 8039320), (20, 6431456), (32, 4019660), (40, 3215728), (64, 2009830), (80, 1607864), (128, 1004915), (160, 803932), (320, 401966), (640, 200983)]