51881875

素因数分解:

$5^4\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:313

約数の個数: 40

約数和(自身を含む): 72539280

約数和(自身を除く): 20657405

約数列:

[1, 5, 17, 19, 25, 85, 95, 125, 257, 323, 425, 475, 625, 1285, 1615, 2125, 2375, 4369, 4883, 6425, 8075, 10625, 11875, 21845, 24415, 32125, 40375, 83011, 109225, 122075, 160625, 201875, 415055, 546125, 610375, 2075275, 2730625, 3051875, 10376375, 51881875]

約数ペア:

[(1, 51881875), (5, 10376375), (17, 3051875), (19, 2730625), (25, 2075275), (85, 610375), (95, 546125), (125, 415055), (257, 201875), (323, 160625), (425, 122075), (475, 109225), (625, 83011), (1285, 40375), (1615, 32125), (2125, 24415), (2375, 21845), (4369, 11875), (4883, 10625), (6425, 8075)]