25721878

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:197

約数の個数: 64

約数和(自身を含む): 50577408

約数和(自身を除く): 24855530

約数列:

[1, 2, 7, 13, 14, 26, 31, 47, 62, 91, 94, 97, 182, 194, 217, 329, 403, 434, 611, 658, 679, 806, 1222, 1261, 1358, 1457, 2522, 2821, 2914, 3007, 4277, 4559, 5642, 6014, 8554, 8827, 9118, 10199, 17654, 18941, 20398, 21049, 31913, 37882, 39091, 42098, 59267, 63826, 78182, 118534, 132587, 141329, 265174, 273637, 282658, 414869, 547274, 829738, 989303, 1837277, 1978606, 3674554, 12860939, 25721878]

約数ペア:

[(1, 25721878), (2, 12860939), (7, 3674554), (13, 1978606), (14, 1837277), (26, 989303), (31, 829738), (47, 547274), (62, 414869), (91, 282658), (94, 273637), (97, 265174), (182, 141329), (194, 132587), (217, 118534), (329, 78182), (403, 63826), (434, 59267), (611, 42098), (658, 39091), (679, 37882), (806, 31913), (1222, 21049), (1261, 20398), (1358, 18941), (1457, 17654), (2522, 10199), (2821, 9118), (2914, 8827), (3007, 8554), (4277, 6014), (4559, 5642)]