388545725

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:422

約数の個数: 48

約数和(自身を含む): 528716160

約数和(自身を除く): 140170435

約数列:

[1, 5, 19, 25, 41, 71, 95, 205, 281, 355, 475, 779, 1025, 1349, 1405, 1775, 2911, 3895, 5339, 6745, 7025, 11521, 14555, 19475, 19951, 26695, 33725, 55309, 57605, 72775, 99755, 133475, 218899, 276545, 288025, 379069, 498775, 817991, 1094495, 1382725, 1895345, 4089955, 5472475, 9476725, 15541829, 20449775, 77709145, 388545725]

約数ペア:

[(1, 388545725), (5, 77709145), (19, 20449775), (25, 15541829), (41, 9476725), (71, 5472475), (95, 4089955), (205, 1895345), (281, 1382725), (355, 1094495), (475, 817991), (779, 498775), (1025, 379069), (1349, 288025), (1405, 276545), (1775, 218899), (2911, 133475), (3895, 99755), (5339, 72775), (6745, 57605), (7025, 55309), (11521, 33725), (14555, 26695), (19475, 19951)]