51900875

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2$

素因数の和:129

約数の個数: 48

約数和(自身を含む): 75260640

約数和(自身を除く): 23359765

約数列:

[1, 5, 13, 19, 25, 41, 65, 95, 125, 205, 247, 325, 475, 533, 779, 1025, 1235, 1625, 1681, 2375, 2665, 3895, 5125, 6175, 8405, 10127, 13325, 19475, 21853, 30875, 31939, 42025, 50635, 66625, 97375, 109265, 159695, 210125, 253175, 415207, 546325, 798475, 1265875, 2076035, 2731625, 3992375, 10380175, 51900875]

約数ペア:

[(1, 51900875), (5, 10380175), (13, 3992375), (19, 2731625), (25, 2076035), (41, 1265875), (65, 798475), (95, 546325), (125, 415207), (205, 253175), (247, 210125), (325, 159695), (475, 109265), (533, 97375), (779, 66625), (1025, 50635), (1235, 42025), (1625, 31939), (1681, 30875), (2375, 21853), (2665, 19475), (3895, 13325), (5125, 10127), (6175, 8405)]