78801920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{15391}}^1$

素因数の和:15416

約数の個数: 44

約数和(自身を含む): 189044544

約数和(自身を除く): 110242624

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 15391, 30782, 61564, 76955, 123128, 153910, 246256, 307820, 492512, 615640, 985024, 1231280, 1970048, 2462560, 3940096, 4925120, 7880192, 9850240, 15760384, 19700480, 39400960, 78801920]

約数ペア:

[(1, 78801920), (2, 39400960), (4, 19700480), (5, 15760384), (8, 9850240), (10, 7880192), (16, 4925120), (20, 3940096), (32, 2462560), (40, 1970048), (64, 1231280), (80, 985024), (128, 615640), (160, 492512), (256, 307820), (320, 246256), (512, 153910), (640, 123128), (1024, 76955), (1280, 61564), (2560, 30782), (5120, 15391)]