311944375

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{241}}^1$

素因数の和:389

約数の個数: 40

約数和(自身を含む): 415804400

約数和(自身を除く): 103860025

約数列:

[1, 5, 19, 25, 95, 109, 125, 241, 475, 545, 625, 1205, 2071, 2375, 2725, 4579, 6025, 10355, 11875, 13625, 22895, 26269, 30125, 51775, 68125, 114475, 131345, 150625, 258875, 499111, 572375, 656725, 1294375, 2495555, 2861875, 3283625, 12477775, 16418125, 62388875, 311944375]

約数ペア:

[(1, 311944375), (5, 62388875), (19, 16418125), (25, 12477775), (95, 3283625), (109, 2861875), (125, 2495555), (241, 1294375), (475, 656725), (545, 572375), (625, 499111), (1205, 258875), (2071, 150625), (2375, 131345), (2725, 114475), (4579, 68125), (6025, 51775), (10355, 30125), (11875, 26269), (13625, 22895)]