51489160

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{4139}}^1$

素因数の和:4461

約数の個数: 32

約数和(自身を含む): 116251200

約数和(自身を除く): 64762040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1244, 1555, 2488, 3110, 4139, 6220, 8278, 12440, 16556, 20695, 33112, 41390, 82780, 165560, 1287229, 2574458, 5148916, 6436145, 10297832, 12872290, 25744580, 51489160]

約数ペア:

[(1, 51489160), (2, 25744580), (4, 12872290), (5, 10297832), (8, 6436145), (10, 5148916), (20, 2574458), (40, 1287229), (311, 165560), (622, 82780), (1244, 41390), (1555, 33112), (2488, 20695), (3110, 16556), (4139, 12440), (6220, 8278)]