2720325

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:138

約数の個数: 48

約数和(自身を含む): 4999680

約数和(自身を除く): 2279355

約数列:

[1, 3, 5, 15, 19, 23, 25, 57, 69, 75, 83, 95, 115, 249, 285, 345, 415, 437, 475, 575, 1245, 1311, 1425, 1577, 1725, 1909, 2075, 2185, 4731, 5727, 6225, 6555, 7885, 9545, 10925, 23655, 28635, 32775, 36271, 39425, 47725, 108813, 118275, 143175, 181355, 544065, 906775, 2720325]

約数ペア:

[(1, 2720325), (3, 906775), (5, 544065), (15, 181355), (19, 143175), (23, 118275), (25, 108813), (57, 47725), (69, 39425), (75, 36271), (83, 32775), (95, 28635), (115, 23655), (249, 10925), (285, 9545), (345, 7885), (415, 6555), (437, 6225), (475, 5727), (575, 4731), (1245, 2185), (1311, 2075), (1425, 1909), (1577, 1725)]