2640525

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1$

素因数の和:158

約数の個数: 48

約数和(自身を含む): 4910400

約数和(自身を除く): 2269875

約数列:

[1, 3, 5, 15, 17, 19, 25, 51, 57, 75, 85, 95, 109, 255, 285, 323, 327, 425, 475, 545, 969, 1275, 1425, 1615, 1635, 1853, 2071, 2725, 4845, 5559, 6213, 8075, 8175, 9265, 10355, 24225, 27795, 31065, 35207, 46325, 51775, 105621, 138975, 155325, 176035, 528105, 880175, 2640525]

約数ペア:

[(1, 2640525), (3, 880175), (5, 528105), (15, 176035), (17, 155325), (19, 138975), (25, 105621), (51, 51775), (57, 46325), (75, 35207), (85, 31065), (95, 27795), (109, 24225), (255, 10355), (285, 9265), (323, 8175), (327, 8075), (425, 6213), (475, 5559), (545, 4845), (969, 2725), (1275, 2071), (1425, 1853), (1615, 1635)]