51791480

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{727}}^1$

素因数の和:888

約数の個数: 64

約数和(自身を含む): 126584640

約数和(自身を除く): 74793160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 137, 260, 274, 520, 548, 685, 727, 1096, 1370, 1454, 1781, 2740, 2908, 3562, 3635, 5480, 5816, 7124, 7270, 8905, 9451, 14248, 14540, 17810, 18902, 29080, 35620, 37804, 47255, 71240, 75608, 94510, 99599, 189020, 199198, 378040, 398396, 497995, 796792, 995990, 1294787, 1991980, 2589574, 3983960, 5179148, 6473935, 10358296, 12947870, 25895740, 51791480]

約数ペア:

[(1, 51791480), (2, 25895740), (4, 12947870), (5, 10358296), (8, 6473935), (10, 5179148), (13, 3983960), (20, 2589574), (26, 1991980), (40, 1294787), (52, 995990), (65, 796792), (104, 497995), (130, 398396), (137, 378040), (260, 199198), (274, 189020), (520, 99599), (548, 94510), (685, 75608), (727, 71240), (1096, 47255), (1370, 37804), (1454, 35620), (1781, 29080), (2740, 18902), (2908, 17810), (3562, 14540), (3635, 14248), (5480, 9451), (5816, 8905), (7124, 7270)]