1871595

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 3744000

約数和(自身を除く): 1872405

約数列:

[1, 3, 5, 9, 11, 15, 19, 33, 45, 55, 57, 95, 99, 165, 171, 199, 209, 285, 495, 597, 627, 855, 995, 1045, 1791, 1881, 2189, 2985, 3135, 3781, 6567, 8955, 9405, 10945, 11343, 18905, 19701, 32835, 34029, 41591, 56715, 98505, 124773, 170145, 207955, 374319, 623865, 1871595]

約数ペア:

[(1, 1871595), (3, 623865), (5, 374319), (9, 207955), (11, 170145), (15, 124773), (19, 98505), (33, 56715), (45, 41591), (55, 34029), (57, 32835), (95, 19701), (99, 18905), (165, 11343), (171, 10945), (199, 9405), (209, 8955), (285, 6567), (495, 3781), (597, 3135), (627, 2985), (855, 2189), (995, 1881), (1045, 1791)]