25654785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:218

約数の個数: 64

約数和(自身を含む): 47900160

約数和(自身を除く): 22245375

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 71, 85, 109, 195, 213, 221, 255, 327, 355, 545, 663, 923, 1065, 1105, 1207, 1417, 1635, 1853, 2769, 3315, 3621, 4251, 4615, 5559, 6035, 7085, 7739, 9265, 13845, 15691, 18105, 21255, 23217, 24089, 27795, 38695, 47073, 72267, 78455, 100607, 116085, 120445, 131563, 235365, 301821, 361335, 394689, 503035, 657815, 1509105, 1710319, 1973445, 5130957, 8551595, 25654785]

約数ペア:

[(1, 25654785), (3, 8551595), (5, 5130957), (13, 1973445), (15, 1710319), (17, 1509105), (39, 657815), (51, 503035), (65, 394689), (71, 361335), (85, 301821), (109, 235365), (195, 131563), (213, 120445), (221, 116085), (255, 100607), (327, 78455), (355, 72267), (545, 47073), (663, 38695), (923, 27795), (1065, 24089), (1105, 23217), (1207, 21255), (1417, 18105), (1635, 15691), (1853, 13845), (2769, 9265), (3315, 7739), (3621, 7085), (4251, 6035), (4615, 5559)]